Knowledge Sentence Examples

To understand this problem, consider our relationship with knowledge over the centuries.

We are becoming a knowledge economy.

He was noted for his great knowledge, the most of which he had obtained from books.

Good work in language presupposes and depends on a real knowledge of things.

The knowledge left him calmer than when he arrived.

As my knowledge of things grew I felt more and more the delight of the world I was in.

Learning history, therefore, according to Thatcher, required knowledge of events.

Talal says you have no knowledge of our war.

Did the company have a knowledge management system?

The only thing that has changed is your knowledge.

My stomach knotted with the knowledge this might be our last chance.

It was his favorite memory, that which preceded his abrupt knowledge of war and the world at large.

You had no real knowledge and therefore no way to make a wise decision.

I knew she remained frightened and I sensed his knowledge of the apparent closeness of the Delabama killer gave at least a modicum of comfort.

It requires a precise knowledge of the moon's mass.

Knowledge must be based upon experience.

She ached to respond but had to be satisfied with the knowledge he was alive.

The theory has not found general acceptance, but it proved of great value to geological science, owing to the extensive additions to the knowledge of the structure of mountain ranges which its author made in endeavouring to find facts to support it.

Now that Molly had confessed more knowledge than any of us suspected, I felt obligated to tell Martha the full story before she learned it from overheard conversation or from Molly directly.

When you die and go to heaven, you have universal knowledge and understanding.

The Wassermans dragged him along for the ride without the knowledge of their employer.

Before a committee of the council Russell, on the 28th of June, acknowledged his presence at the meeting, but denied all knowledge of the proposed insurrection.

Instead, she concentrated on figuring out what knowledge she could about the souls in the lake.

Desire spiked through him at the knowledge that his mate was in his arms.

The knowledge doesn't make life any sweeter or happier, does it?

And he's using that knowledge to his advantage... better disguises, changing his MO, carefully executing his abductions.

Finally, when I use the word "wisdom," I am talking about applying a value system to knowledge to suggest a course of action.

If it is not she I suspect she possesses knowledge of the one I seek, the one who is my target.

A long tour in Italy in 1828 was the beginning of his intimacy with Bunsen and did much to develop his knowledge of art and love of antiquity.

His travels had convinced him that a full and comprehensive knowledge of classical antiquity could only be acquired by a thorough acquaintance with Greek and Roman monuments and works of art, and a detailed examination of the topographical and climatic conditions of the chief localities of the ancient world.

In this position his moderation, industry, good sense, knowledge of men and of affairs, made his services of great value.

I do not think that the knowledge which I have gained of its history and sources compensates me for the unpleasant details it has forced upon my attention.

And how would Nota and associates come by this knowledge in the first place?

But we possess knowledge of the physical world and of it alone.

Moreover, whatever the value of Goethe's labours in that field, they were not published before 1820, long after evolutionism had taken a new departure from the works of Treviranus and Lamarck - the first of its advocates who were equipped for their task with the needful large and accurate knowledge of the phenomena of life as a whole.

Embracing the whole philosophic movement under the name of "the Cartesian system," Reid detects its fundamental error in the unproved assumption shared by these thinkers "that all the objects of my knowledge are ideas in my own mind."

He will therefore devote all his care to examine and distinguish these three means of knowledge; and seeing that truth and error can, properly speaking, be only in the intellect, and that the two other modes of knowledge are only occasions, he will carefully avoid whatever can lead him astray."

He held that there were two sources of knowledge - the mysteries of Christian faith and the truths of human reason.

Granted that, ideally, scientific knowledge ought to be able to demonstrate all truth, is it safe, or humane, for a being who is imperfectly started in the process of knowledge to fling away with scorn those unanalysed promptings and misgivings " Which, be they what they may, Are yet the fountain light of all our day, Are yet a master light of all our seeing.

It required for its formation an amount of scientific knowledge which could only be very gradually acquired.

The premature death of this illustrious traveller is the more to be lamented because his vast knowledge died with him.

While steam has been said to make a ship independent of wind and tide, it is still true that a long voyage even by steam must be planned so as to encounter the least resistance possible from prevailing winds and permanent currents, and this involves the application of oceanographical and meteorological knowledge.

The older navigation by utilizing the power of the wind demands a very intimate knowledge of these conditions, and it is probable that a revival of sailing ships may in the present century vastly increase the importance of the study of maritime meteorology.

As vizier to the Moorish king at Granada, he was not only a patron of learning, but himself a man of wide knowledge and a considerable author.

Such knowledge became essential to men in a high position as a means of intercourse with Greeks, while Greek literature stimulated the minds of leading Romans.

Amongst his published works are Knowledge and Reality (q85); Logic, or the Morphology of Knowledge (1888); Essentials of Logic (1895); Psychology of.

The knowledge of this fact may have rendered Theodoric suspicious.

Antisthenes adopted this principle in its most literal sense, and proceeded to explain "knowledge" in the narrowest terms of practical action and decision, excluding from the conception everything except the problem of individual will realizing itself in the sphere of ordinary existence.

It was left to the Stoics to separate the wheat from the chaff, and to assign to the words "knowledge" and "nature" a saner and more comprehensive meaning.

But, when increased knowledge of Aristotle's texts (and of the commentaries) led to the victory of a supposed Aristotelianism over a supposed Platonism, Albertus Magnus, and his still more distinguished pupil Thomas Aquinas, mark certain doctrines as belonging to faith but not to reason.

In later life he was accustomed to say that he knew as much about mathematics when he was eighteen as ever he knew; but his reading embraced nearly the whole round of knowledge - history, travels, poetry, philosophy and the natural sciences.

Aberdeen was a distinguished scholar with a retentive memory and a wide knowledge of literature and art.

Theodore obtained the elements of knowledge in the schools of the district, which were open during the winter months only.

So, too, the Villari reversals in iron and cobalt might have been predicted - as indeed that in cobalt actually was - from a knowledge of the changes of length which those metals exhibit when magnetized.

The principle of Weber's theory, with the modification necessitated by lately acquired knowledge, is the basis of the best modern explanation of diamagnetic phenomena.

It gives no evidence of science, he remarks, to possess a tolerable knowledge of the Roman tongue, such as once was possessed by the populace of Rome.'

Examining next what immediately follows the knowledge of pure intellect, he will pass in review all the other means of knowledge, and will find that they are two (or three), the imagination and the senses (and the memory).

Revelation is a divine source of knowledge, of which Scripture and church tradition are the channels; and he who would rightly v.

The narrative of this journey, which contained the first accurate knowledge (from scientific observation) regarding the topography and geography of the region, was published by his widow under the title, Narrative of a Residence in Koordistan and on the site of Ancient Nineveh, F&'c. (London, 1836).

At a time when many encyclopedias have capsulated and condensed important knowledge, the 11th edition is generally much more in-depth and thorough on its topics.

Others again, like Michaelis and Rosenmiiller, have supposed that the name Cush was applied to tracts of country both in Arabia and in Africa, but the defective condition of the ancient knowledge of countries and peoples, as also the probability of early migrations of "Cushite" tribes (carrying with them their name), will account for the main facts.

He regarded the world as formed by inferior spirits who are out of harmony with the supreme unity, knowledge of which is the true Gnosis.

Among recent advances having medical import in our knowledge of the Nematodes, the chief are those dealing with the parasites of the blood.

With the development of agricultural knowledge, notable improvements have been effected in the manufacture of oil.

It is interesting, in view of his later efforts to spread the knowledge of the Bible among the people, to know that in the capacity of examiner he insisted on a thorough acquaintance with the Holy Scriptures, and rejected several candidates who were deficient in this qualification.

The universe exists - or, as otherwise stated, the universe is " contingent " - therefore, even without detailed knowledge of different universes, we can affirm that it must be caused, and in its " Great First Cause " we recognize God.'

So - for this among other reasons - we infer that knowledge has narrow limits, beyond which doubt, or faith, presently begins.

True, Kant refers often to the ideal of a " perceptive " or " intuitive understanding," whose thought would produce the whole of knowledge out of its native contents.

But speculative knowledge breaks down or breaks off at an earlier point.

He admits two sources of knowledge - sensation and refiexion; and God is to him the Great First Cause, especially of our own existence (or of the existence of finite minds).

There was a new scepticism - at the very least a doctrine of limitation in human knowledge; but in its extremer forms an absolute agnosticism.

Mill complained, 4 " bringing back under the name of belief what they banished as knowledge."

Vergniaud certainly was far superior to him in oratory, but Brissot was quick, eager, impetuous, and a man of wide knowledge.

At present, therefore, classifications of the Hydromedusae have a more or less tentative character, and are liable to revision with increased knowledge of the life-histories of these organisms. Many groups bear at present two names, the one representing the group as defined by polyp-characters, the other as defined by medusa-characters.

In all the abovementioned genera, with the exception of Hydra, the life-cycle is so imperfectly known that their true position cannot be determined in the present state of our knowledge.

Thus he suggests that man has not eyes of a microscopic delicacy, because he would receive no great advantage from such acute organs, since though adding indefinitely to his speculative knowledge of the physical world they would 1 Yet he leaves open the question whether the Deity has annexed thought to matter as a faculty, or whether it rests on a distinct spiritual principle.

Erasmus Darwin (Zoonomia, 17 94), though a zealous evolutionist, can hardly be said to have made any real advance on his predecessors; and, notwithstanding the fact that Goethe had the advantage of a wide knowledge of morphological facts, and a true insight into their signification, while he threw all the power of a great poet into the expression of his conceptions, it may be questioned whether he supplied the doctrine of evolution with a firmer scientific basis than it already possessed.

But, as knowledge advanced, this conception ceased to be tenable in the crude form in which it was first put forward.

Authors refer, in the prefaces to their books, to the Great Minster as the source of their knowledge.

In 1694 the apothecaries had increased from 114 to nearly 1000, and many of them, having acquired a knowledge of the uses of medicine, began to prescribe medicines for their customers and to assume the functions of the physician, who retorted in 1697 by establishing dispensaries, where medicines could be procured at their intrinsic value, or at cost price.

While geographical knowledge of the west was still scanty and the secrets of the tin-trade were still successfully guarded by the seamen of Gades and others who dealt in the metal, the Greeks knew only that tin came to them by sea from the far west, and the idea of tin-producing islands easily arose.

As a result of this activity Van Tieghems so-called Stelar theory has been revised and modified in the light of more extended and detailed anatomical and developmental knowledge.

Upon our knowledge of its minute structure or cytology, combined with a study of its physiological activities, depends the ultimate solution of all the important problems of nutrition.

Investigations of every kind which have been based on original sources of knowledge may be styled "research," and it may be said that without "research" no authoritative works have been written, no scientific discoveries or inventions made, no theories of any value propounded; but the word also has a somewhat restricted meaning attached to it in current usage.

The middle ages saw geographical knowledge die out in Christendom, although it retained, through the Arabic translations of Ptolemy, a certain vitality in Islam.

Geography appealed to him as a valuable educational discipline, the joint foundation with anthropology of that " knowledge of the world " which was the result of reason and experience.

For some of these we have no certain information, and regarding others the tales narrated in the early records are so hard to reconcile with present knowledge that they are better fitted to be the battle-ground of scholars championing rival theories than the basis of definite history.

The Ptolemies in Egypt showed equal anxiety to extend the bounds of geographical knowledge.

Roman intercourse with India especially led to the extension of geographical knowledge.

The works of the ancient Greek geographers were translated into Arabic, and starting with a sound basis of theoretical knowledge, exploration once more made progress.

It is from these works that our knowledge of the gallant deeds of the English and other explorers of the Elizabethan age is mainly derived.

From that time a fleet was despatched every year, and the company's operations greatly increased geographical knowledge of India and the Eastern Archipelago.

West Indies from 1599 to 1602, established his historic connexion with Canada, to the geographical knowledge of which he made a very large addition.

The increasing number of measurements of the height of land in all continents and islands, and the very detailed levellings in those countries which have been thoroughly surveyed, enable the average elevation of the land above sea-level to be fairly estimated, although many vast gaps in accurate knowledge remain, and the estimate is not an exact one.

The discovery and production of commodities require a knowledge of the distribution of geological formations for mineral products, of the natural distribution, life-conditions and cultivation or breeding of plants and animals and of the labour market.

But in 1496, when the sovereigns again complained that the inquisitors were, without royal knowledge or consent, disposing of the property of the condemned and thus depriving the public revenues of considerable sums, Alexander VI.

Attempts to derive the anacromyodian and the katacromyodian from the diacromyodian condition are easy on paper, but quite hopeless when hampered by the knowledge of anatomical facts and how to use them.

He was one of the first to see that for Biblical exegesis it was necessary to reconstruct the social environment of olden times, and he skilfully applied his practical knowledge of statecraft to the elucidation of the books of Samuel and Kings.

A few of these have been translated, but as yet no European scholar possesses knowledge sufficient to enable him to study these valuable documents at first hand.

During his term of office he appeared in a case before the United States Supreme Court, where his knowledge of civil law so strongly impressed Edward Livingston, the secretary of state, who was himself an admirer of Roman Law, that he urged Legare to devote himself to the study of this subject with the hope that he might influence American law toward the spirit and philosophy and even the forms and processes of Roman jurisprudence.

While he must beware of hasty speech, he has often to plead that new knowledge does not really threaten faith; or that it is not genuinely established knowledge at all; or else, that faith has mistaken its own grounds, and will gain strength by concentrating on its true field.

In spite of his surname, and of his knowledge of the French language, his attitude towards foreigners attests that he was of English birth.

The Logic, an eminently practical work, written from the point of view of Locke, is in five parts, dealing with (1) the nature of the human mind, its faculties and operations; (2) ideas and their kinds; (3) the true and the false, and the various degrees of knowledge; (4) reasoning and argumentation; (5) method and the ordering of our thoughts.

Jordanes refers in the Getica to a number of authors besides Cassiodorus; but he owes his knowledge of them to Cassiodorus.

Empiricism, hitherto the only guide, if indeed a guide at all, was replaced by exact scientific knowledge; the connexion of each phenomenon with a controllable cause was established, and rule-of-thumb and quackery banished for ever by the free gift to the world of the results of his researches.

Had he possessed such a knowledge of Roman law as is now not uncommon in England, he must doubtless have taken a different view of many subjects.

But Buffier does not claim for these truths of "common sense" the absolute certainty which characterizes the knowledge we have of our own existence or the logical deductions we make from our thoughts; they possess merely the highest probability, and the man who rejects them is to be considered a fool, though he is not guilty of a contradiction.

He distinguished between knowledge of actual objects and the divine inspiration by which we cognize the being and existence of God.

What before was done in the light of experience is nowadays done in the light of knowledge.

The Book of Surveying adds considerably to our knowledge of the rural economy of that age.

Some of his recommendations are quite unsuitable to the state of the country, and display more of general knowledge and good intention than of either the theory or practice of agriculture.

The first attempts at improvement cannot be traced farther back than 1723, when a number of landholders formed themselves into a society, under the title of the Society of Improvers in the Knowledge of Agriculture in Scotland.

In this he lays it down as a rule that it is bad husbandry to take two crops of grain successively, which marks a considerable progress in the knowledge of modern husbandry; though he adds that in Scotland the best husbandmen after a fallow take a crop of wheat; after the wheat, peas; then barley, and then oats; and after that they fallow again.

Meanwhile much had been done in the organization of agricultural knowledge.

Judgment founded on knowledge and aided by careful observation, both in the field and in the feeding-shed, must be relied upon as the guide of the practical farmer.

Its members signed the charters by which the king conveyed grants of land to churches and to individuals, and it is from the extant charters that we mainly derive our knowledge about the composition of the witan.

Not unnaturally the training which the younger Mill received has aroused amazement and criticism; and it is reasonable to doubt whether the material knowledge which he retained in the result was as valuable to him as his father imagined.

It gave unity to the detached and fragmentary parts of his knowledge and beliefs.

They display considerable knowledge of Latin, but less of Greek, on the value of which he strongly insisted.

Most, if not all, of the important knowledge of remedies comes from America, where this subject reaches the highest perfection; even the life-histories of some of the British pests have been traced out in the United States and British colonies more completely than at home, from the creatures that have been introduced from Europe.

A correct sense of proportion and the faculty of seizing upon the dominant factors in an historical problem are the result partly of the possession of certain natural gifts in which many individuals and some nations are conspicuously wanting, partly of general knowledge of the working of the economic and political institutions of the period we are studying, partly of what takes the place of practical experience in relation to modern problems, namely, detailed acquaintance with different kinds of original sources and the historical imagination by which we can realize the life and the ideals of past generations.

In the tabulation and interpretation of statistical evidence, as in its collection, it is scarcely possible to overrate the importance of wide knowledge and experience.

If we take the mere popular view of what is meant by the " old Political Economy," that is, that a generation or so ago economics was comprised in a neatly rounded set of general propositions, universally accepted, which could be set forth in a question we have really to determine is how we can make the best use of the accumulated knowledge of past generations, and to do that we must look more closely into the economic science of the 10th century..

For these problems we want, not a few old-established general principles which no one seriously calls in question, but genuine constructive and organizing capacity, aided by scientific and detailed knowledge of particular institutions, industries and classes.

That is, original investigation of special problems has to be carried out on a more gigantic scale than any economist of the historical school ever dreamt of or the world requires, with the certain knowledge that at the end of it all the general theory will not correspond with the facts of life.

At the same time he endeavoured to acquire a knowledge of Hebrew, in order to be able to read the Old Testament in the original.

But the link that connects him with churchly realism, as well as with the NeoPlatonic mysticism, is the conviction that complete and certain knowledge rests wholly on divine revelation, i.e.

The objects of religious knowledge are beyond the plane of history, or rather - in a thoroughly Gnostic and Neo-Platonic spirit - they are regarded as belonging to a supra-mundane history.

A secret mission to Genoa enabled him to inspect the pass north of Savona, and the knowledge of the peculiarities of that district certainly helped him in maturing his plan for an invasion of Italy, which he put into execution in 1796.

The opposition in the Tribunate was sharp, but was paralysed by the knowledge of the fact just named and by the lack of a free press.

Latterly the prince had fallen into disgrace for proposing, without the knowledge of Charles IV., to ally himself with a Bonaparte princess.

Throughout life Carteret not only showed a keen love of the classics, but a taste for, and a knowledge of, modern languages and literatures.

During this period of diplomatic work he acquired an exceptional knowledge of the affairs of Europe, and in particular of Germany, and displayed great tact and temper in dealing with the Swedish senate, with Queen Ulrica, with the king of Denmark and Frederick William I.

But by laying bare in 1884 the upper stratum of remains on the rock of Tiryns (q.v.), Schliemann made a contribution to our knowledge of prehistoric domestic life which was amplified two years later by Chr.

The revolution of 1897-98 opened the door to wider knowledge, and much exploration has ensued, for which see Crete.

About institutions we have less certain knowledge, there being but little evidence for the earlier periods; but in the documents relating to religion, the most significant of all, it can at least be said that there is no trace of sharp change.

This (obviously valid) distinction logically involves the consequence that the object, or content, of knowledge, viz.

The faculty employed in this further investigation is no "separate moral faculty," but that same reason which is the source of all our knowledge - ethical and other.

The title Nasoraeans (Nasoraye), according to Petermann, they give only to those among themselves who are most distinguished for knowledge and character..

For our knowledge of their doctrinal system, however, we still depend chiefly upon the sacred books already mentioned, consisting of fragments of very various antiquity derived from an older literature.8 Of these the largest and most important is the Sidra' rabbd (" Great Book"), known also as Ginza - ("Treasure"), consisting of two unequal parts, of which the larger is called yamina (to the right hand) and the smaller s'znala (to the left hand), because of the manner in which they are bound together.

The Mandaeans are strictly reticent about their theological dogmas in the presence of strangers; and the knowledge they actually possess of these is extremely small.

Outvoting Franklin, they decided to break their instructions, which required them to ` make the, most candid confidential communications on all subjects to the ministers of our generous ally, the king of France; to undertake nothing in the negotiations for peace or truce without their knowledge or concurrence; and ultimately to govern yourself by their advice and opinion "; and, instead,.

Thackeray stayed in the vicinity in youth, his knowledge of the locality appearing in Pendennis.

Nevertheless, the constant increase of our knowledge of insect forms renders classification increasingly difficult, for gaps in the series become filled, and while the number of genera and families increases, the distinctions between these groups become dependent on characters that must seem trivial to the naturalist who is not a specialist.

The Hexapoda, being aerial, terrestrial and fresh-water animals, are but occasionally preserved in stratified rocks, and our knowledge of extinct members of the class is therefore fragmentary, while the description, as insects, of various obscure fossils, which are perhaps not even Arthropods, has not tended to the advancement of this branch of zoology.

Sundevall - equally proficient in classical as in ornithological knowledge - was, in 1863, compelled to leave more than a score of the birds of which Aristotle wrote unidentified.

Like nearly all his predecessors since Aelian, he adopted an alphabetical arrangement, though this was not too pedantically preserved, and did not hinder him from placing together the kinds of birds which he supposed (and generally supposed rightly) to have the most resemblance to that one whose name, being best known, was chosen for the headpiece (as it were) of his particular theme, thus recognizing to some extent the principle of classification.3 Belon, with perhaps less book-learning than his contemporary, was evidently no mean scholar, and undoubtedly had more practical knowledge of birds - their internal as well as external structure.

Belon, as has just been said, had a knowledge of the anatomy 1 This was reprinted at Cambridge in 1823 by Dr George Thackeray.

If, then, those contents do not represent the knowledge of Jaber, and if the contents of other Latin translations which there is reason to believe are really made from the Arabic, show little, if any, advance on the knowledge of the Alexandrian Greeks, evidently the part played by the Arabs must be less, and that of the Westerns greater, than Gibbon is prepared to admit.

But side by side with this literary transmission Berthelot insists that there was another mode of transmission, by means of the knowledge of practical receipts and processes traditional among jewellers, painters, workers in glass and pottery, and other handicraftsmen.

The chemical knowledge of Egyptian metallurgists and jewellers, he holds, was early transmitted to the artisans of Rome, and was preserved throughout the dark ages in the workshops of Italy and France until about the 13th century, when it was mingled with the theories of the Greek alchemists which reached the West by way of the Arabs.

This sulphur again was not ordinary sulphur, but some principle derived from it, which constituted the philosopher's stone or elixir - white for silver and yellow or 1 " Some traditionary knowledge might be secreted in the temples and monasteries of Egypt; much useful experience might have been acquired in the practice of arts and manufactures, but the science of chemistry owes its origin and improvement to the industry of the Saracens.

His opportunities of gaining knowledge were very scanty, but he strenuously set himself to make the most of them.

Our knowledge of Lanfranc's polemics is chiefly derived from the tract De cor pore et sanguine Domini which he wrote many years later (after 1079) when Berengar had been finally condemned.

The story of Memnon was the subject of the lost Aethiopis of Arctinus of Miletus; the chief source from which our knowledge of him is derived is the second book of the Posthomerica of Quintus Smyrnaeus (itself probably an adaptation of the works of Arctinus and Lesches), where his exploits and death are described at length.

Although the bent of his mind was legal, he never made himself an expert jurist; but he had the art of turning his knowledge, such as it was, to excellent account.

Knowledge of Neolithic times is derived principally from four sources, Tumuli or ancient burial-mounds, the Lake-dwellings of Switzerland, the Kitchenmiddens of Denmark and the Bone-Caves.

Since the foundation of the German Institute in 1874, Athenian topography has to a large extent become a speciality of German scholars, among whom Wilhelm DOrpfeld occupies a pre-eminent position owing to his great architectural attainments and unrivalled local knowledge.

We are principally concerned, however, with the results which add to our knowledge of the topography and architecture of the Acropolis.

This was a notable concession, by which the nobles lost that exclusive legal knowledge which had formed one of their main instruments of oppression.

The aborigines, Sheng fan, or " wild savages," deserved the appellation in some respects, for they lived by the chase and had little knowledge even of husbandry; while the Chinese themselves, uneducated labourers, acknowledged no right except that of might.

The senses with their changing and inconsistent reports cannot cognize this unity; it is by thought alone that we can pass beyond the false appearances of sense and arrive at the knowledge of being, at the fundamental truth that "the All is One."

Thus he based Judaism on love, not on knowledge; love was the bond between God and man, and man's fundamental duty was love as expressed in obedience to God's will.

To the physicist matter is presented in three leading forms - solids, liquids and gases; and although further subdivisions have been rendered necessary with the growth of knowledge the same principle is retained, namely, a classification based on properties having no relation to composition.

Towards the end of the 16th century the failure of the alchemists to achieve their cherished purpose, and the general increase in medical knowledge, caused attention to be given to the utilization of chemical preparations as medicines.

In his Sceptical Chemist (1662) he freely criticized the prevailing scientific views and methods, with the object of showing that true knowledge could only be gained by the logical application of the principles of experiment and deduction.

The phlogistic theory, which pervaded the chemical doctrine of this period, gave rise to continued study of the products of calcination and combustion; it thus happened that the knowledge of oxides and oxidation products was considerably developed.

Gerland contributed to our knowledge of vanadyl salts and the vanadic acids.

Nilson, and subsequently (1904) by Hall, rendered notable additions to our knowledge of these elements and their compounds.

He established the existence of two new elements, samarium and gadolinium, since investigated more especially by Cleve, to whom most of our knowledge on this subject is due.

Scheele enriched the knowledge of chemistry by an immense number of facts, but he did not possess the spirit of working systematically as Bergman did.

While polysymmetry is solely conditioned by the manner in which the mimetic twin is built up from the single crystals, there being no change in the scalar properties, and the vector properties being calculable from the nature of the twinning, in the case of polymorphism entirely different structures present themselves, both scalar and vector properties being altered; and, in the present state of our knowledge, it is impossible to foretell the characters of a polymorphous modification.

The nitro group behaves very similarly to the hydroxyl group. The effect of varying the position of the nitro group in the molecule is well marked, and conclusions may be drawn as to the orientation of the groups from a knowledge of the crystal form; a change in the symmetry of the chemical molecule being often attended by a loss in the symmetry of the crystal.

Those who have believed in Christ are the present representatives and result of this purpose; and a clear knowledge of the purpose itself, the secret of the ages, has now been revealed to men.

In the years immediately preceding the war we have to chronicle first a great advance in our knowledge of the beginnings of Egyptian history, owing mainly to the excavations of Prof. Flinders Petrie at Tarkhan 1 and of the German, Prof. Junker (working for Austria), at Tura.

At the same time Alexander himself made it a principal concern to win fresh geographical knowledge, to open new ways.

Though few excelled him in a knowledge of the forms of the House or in mastery of administrative details, his tact in dealing with men and with affairs was so defective that there is perhaps no one who has been at the head of an English administration to whom a lower place can be assigned as a statesman.

During these years Chastellain had ample opportunity of obtaining an intimate knowledge of French affairs, but on the further breach between the two princes, Chastellain left the French service to enter Philip's household.

Chastellain was constantly engaged during the earlier part of his career in negotiations between the French and Burgundian courts, and thus had personal knowledge of the persons and events dealt with in his history.

This union, when accomplished by the individual soul, must enhance its susceptibilities and powers, and so the yogis claim a far-reaching knowledge of the secrets of nature and extensive sway over men and natural phenomena.

The geographical knowledge of Anaximander was naturally more ample than that of Homer, for it extended from the Cassiterides or Tin Islands in the west to the Caspian in the east, which he conceived to open out into Oceanus.

The works of Raoul Rochette display a comprehensive knowledge of the whole subject, extensive reading, and a thorough acquaintance with early Christian art so far as it could be gathered from books, but he was not an original investigator.

From them he derived a sound knowledge of artillery and fortification, and particularly of mountain warfare, which latter was destined to prove of inestimable service to him in his first campaigns of 1794-95 and 1796.

He was in truth the Sicilian bee, and, plucking the flowers of the prophetic and apostolic meadow, he produced a wonderfully pure knowledge in the souls of the listeners."

He is at home alike in the epic and the lyric, the tragic and the comic poets, and his knowledge of the prose writers is very extensive.

Equally minute is his knowledge of the systems of the Christian heretics.

Notwithstanding this adequate knowledge of Scripture, the modern theologian is disappointed to find very little of what he deems characteristically Christian.

It began with faith, passed from that to love, and ended in full and complete knowledge.

There could be no faith without knowledge.

But the knowledge is imperfect, and the Christian was to do many things in simple obedience without knowing the reason.

He was also favourable to the pursuit of all kinds of knowledge.

Allenlightenment tended to lead up to the truths of Christianity, and hence knowledge of every kind not evil was its handmaid.

The Jew and the heathen had the gospel preached to them in the world below by Christ and his apostles, and Christians will have to pass through processes of purification and trial after death before they reach knowledge and perfect bliss.

In his Practica geometriae plain traces of the use of the Roman agrimensores are met with; in his Liber abaci old Egyptian problems reveal their origin by the reappearance of the very numbers in which the problem is given, though one cannot guess through what channel they came to Leonardo's knowledge.

The "Cleveland plan," in force in the public schools, minimizes school routine, red tape and frequent examinations, puts great stress on domestic and manual training courses, and makes promotion in the grammar schools depend on the general knowledge and development of the pupil, as estimated by a teacher who is supposed to make a careful study of the individual.

The communication between the Norse settlements in Greenland and the motherland Norway was broken off at the end of the 14th and the beginning of the 15th century, and the Norsemen's knowledge about their distant colony was gradually more or less forgotten.

The south and west coast of Greenland was then re-discovered by John Davis in July 1585, though previous explorers, as Cortereal, Frobisher and others, had seen it, and at the end of the 16th and the beginning of the 17th century the work of Davis (1586-1588), Hudson (1610) and Baffin (1616) in the western seas afforded some knowledge of the west coast.

But these interesting phenomena have not hitherto been subject to systematic observation, and our knowledge of them is therefore uncertain.

The Danish expeditions of 1899-1900 have added considerably to our knowledge of the Jurassic rocks of East Greenland.

The interpretation of the phenomena of gaseous conduction was rendered possible by the knowledge previously acquired of conduction through liquids; the newer subject is now reaching a position whence it can repay its debt to the older.

His knowledge of hydraulics caused him to be frequently consulted with respect to the management of canals and other watercourses in various parts of Europe.

His pupil, Gentile da Fabriano (1370-1428), was a painter of considerably greater skill and wider knowledge; but there are no important works of his at Fabriano.

About the age of twenty the desire of increasing his stock of knowledge (c. 679) drew him to Ireland, which had so long been the headquarters of learning in western Europe.

Thus, at the age of three-and-thirty, this naturally indolent and self-indulgent woman, with little knowledge and no experience of affairs, suddenly found herself at the head of a great empire at one of the most critical periods of its existence.

Middendorff's journey (1844-1845) to north-eastern Siberia - contemporaneous with Castren's journeys for the special study of the Ural-Altaian languages - directed attention to the far north and awakened interest in the Amur, the basin of which soon became the scene of the expeditions of Akhte and Schwarz (1852), and later on (1854-1857) of the Siberian expedition to which we owe so marked an advance in our knowledge of East Siberia.

In a later scheme based on our increased knowledge of fossil forms, the Brachiopoda are divided into four primary groups (orders).

Indeed Mechnikov, to whom we owe much of our knowledge of these forms, calls them "creeping Nematoda."

Before the general peace of 1815 he had served in North America and the West Indies and gained a wide knowledge of conditions of life on board ship under various commanders.

In 1802, on the eve of Lord Lake's Mahratta war, his chemical knowledge enabled him to render a signal service to the administration by making available a large quantity of gunpowder which damp had spoiled.

The Inquisition, by its decree Lamentabili sane (2nd of July 1907), condemned sixty-five propositions concerning the Church's magisterium; biblical inspiration and interpretation; the synoptic and fourth Gospels; revelation and dogma; Christ's divinity, human knowledge and resurrection; and the historical origin and growth of the Sacraments, the Church and the Creed.

Admitting Kant's hypothesis that by inner sense we are conscious of mental states only, he holds that this consciousness constitutes a knowledge of the "thing-in-itself" - which Kant denies.

The improvement of the telescope was justly regarded as a sine qua non for the advancement of astronomical knowledge.

In regard to the ancients' knowledge of lead compounds, we may state that the substance described by Dioscorides as, uoXv,3Saiva was undoubtedly litharge, that Pliny uses the word minium in its present sense of red lead, ana that white lead was well known to Geber in the 8th century.

Glanvill's first work (a passage in which suggested the theme of Matthew Arnold's Scholar Gipsy), The Vanity of Dogmatizing, or Confidence in Opinions, manifested in a Discourse of the shortness and uncertainty of our Knowledge, and its Causes, with Reflexions on Peripateticism, and an Apology for Philosophy (1661), is interesting as showing one special direction in which the new method of the Cartesian philosophy might be developed.

The author obtained his knowledge about the last days of Edward II.

For this post he was well fitted by his knowledge of common law, his habitual attention to the pleadings in court and his power of clear statement.

The knowledge of law shown in the plays is very much what a universal observer must have picked up. Lawyers always underestimate the legal knowledge of an intelligent layman.

The Panorama had a large circulation and influence, and Herculano's biographical sketches of great men and his articles of literary and historical criticism did much to educate the middle class by acquainting them with the story of their nation, and with the progress of knowledge and the state of letters in foreign countries.

He made himself master of practically every branch of medieval learning, and had a thorough knowledge of the sources and the bibliography of his subject.

The Agricultural Journal, a government publication issued fortnightly, is of great service in the promotion of agricultural knowledge.

For the conflicts which accompanied the first intrusion of philosophy into the theological domain more profound and cautious thinkers with a far ampler apparatus of knowledge had substituted a harmony.

What was the extent of their knowledge of ancient philosophy?

And, though we may acquit Roscellinus of consciously propounding a theory so subversive of all knowledge, his criticism of the doctrine of the Trinity is proof at least of the determination with which he was prepared to carry out his individualism.

The apocryphal Neoplatonic treatises and the First views of the Arabian commentators obscured for the effects of first students the genuine doctrine of Aristotle, and the the new 13th century opens with quite a crop of mystical knowledge.

Growing knowledge of Aristotle's works and the multiplication of translations enabled students to tendency.

He was more of a theologian than a philosopher; and in his chief work, of Summa universae theologiae, he simply employs his increased philosophical knowledge in the demonstration of theological doctrines.

Albert and no doubt stood on a higher level than Anselm and Abelard, not merely by their wider range of knowledge but also by the intellectual massiveness of their achieve ments; but it may be questioned whether the earlier writers did not possess a greater force of originality and a keener talent.

God is not fully comprehensible by us, says Albert, because the finite is not able to grasp the infinite, yet he is not altogether beyond our knowledge; our intellects are touched by a ray of his light, and through this contact we are brought into communion with him.

And in a similar spirit he explains the universalia ante rem as being, not substantial existences in God, but simply God's knowledge of things - a knowledge which is not of universals but of singulars, since these alone exist realiter.

Aquinas had regarded the knowledge of the universal as an intellectual activity which might even be advanced in proof of the immortality of the soul.

Both are agreed in placing repentance and faith far above philosophical knowledge.

It was there that he had to pick up such rudiments of knowledge as formed his first equipment in life, but from his earliest years he was indefatigable in the work of self-cultivation.

Recognized as among the first mathematicians of his day, he was also widely known for the universality and depth of his philological and philosophical knowledge.

They brought from their native Italy a thorough knowledge of the science of government as the middle ages understood it, and the decimation of the Hungarian magnates during the civil wars enabled them to re-create the noble hierarchy on a feudal basis, in which full allowance was made for Magyar idiosyncracies.

Against the advice of all his counsellors, and without the knowledge of the estates, Rakoczy, in 1657, plunged into the troubled sea of Polish politics, in the hope of winning the Polish throne, and not only failed miserably but overwhelmed Transylvania in his own ruin.

On the 7th the Hungarian diet formally refused to acknowledge the title of the new king, " as without the knowledge and consent of the diet no one could sit on the Hungarian throne," and called the nation to arms. Constitutionally, in the Magyar opinion, Ferdinand was still king of Hungary, and this gave to the revolt an excuse of legality.

The violent political commotions of the next few years allowed but little opportunity for the prosecution of serious studies; the subsequent quieter state of the country, and gradual re-establishment of the language as a means of education, were, however, more favourable to the development of scientific knowledge.

The general working of the great machine was now laid bare, and it needed a further advance of knowledge to bring a fresh set of problems within reach of investigation.

Though he was much indebted to Aristotle he used the material to advantage, adding much from his own experience and historical knowledge.

The knowledge of these laws, however, does not imply the existence of a conception of negative quantities.

The earliest Indian mathematician of whom we have certain knowledge is Aryabhatta, who flourished about the beginning of the 6th century of our era.

An astronomical work, called the Surya-siddhanta (" knowledge of the Sun "), of uncertain authorship and probably belonging to the 4th or 5th century, was considered of great merit by the Hindus, who ranked it only second to the work of Brahmagupta, who flourished about a century later.

An imperfect solution of the equation x 3 +-- px 2 was discovered by Nicholas Tartalea (Tartaglia) in 1530, and his pride in this achievement led him into conflict with Floridas, who proclaimed his own knowledge of the form resolved by Ferro.

In the single internment camp of Arad there were 3,400 deaths among the victims from Bosnia alone; and Father Nikolic, a Catholic priest from Istria, testified to having himself buried over 2,000 Istrian victims, and Doctor Martinovic to a knowledge of 8,000 fatal cases in the Styrian camps.

This offer was made in the knowledge that the memorandum addressed by President Wilson two days previously to Orlando and Sonnino had met with rejection, and was indeed well calculated to heighten the contrast between the outlook of the two rival nations toward Wilsonian principles.

Fortunately the new Giolitti and Vesnie Cabinets showed equal moderation and skill in restraining the hotheads on both sides, and the new Foreign Minister, Count Sforza, was assisted by a personal knowledge of Serbian and Balkan problems all too rare among western statesmen.

Anatomy and the study of animal mechanism, animal physics and animal chemistry, all of which form part of a true zoology, were excluded from the usual definition of the word by the mere accident that the zoologist had his museum but not his garden of living specimens as the botanist had; 1 and, whilst the zoologist was thus deprived of the means of anatomical and physiological study - only later supplied by the method of preserving animal bodies in alcohol - the demands of medicine for a knowledge of the structure of the human animal brought into existence a separate and special study of human anatomy and physiology.

From these special studies of human structure the knowledge of the anatomy of animals has proceeded, the same investigator who had made himself acquainted with the structure of the human body desiring to compare with the standard given by human anatomy the structures of other animals.

Thus comparative anatomy came into existence as a branch of inquiry apart from zoology, and it was only in the latter part of the 19th century that the limitation of the word " zoology " to a knowledge of animals which expressly excludes the consideration of their internal structure was rejected by the general consent of those concerned in the progress of science.

The active search for knowledge by means of observation and experiment found its natural home in the universities.

Animals as well as plants were regarded as " simples " and used in medicine, and a knowledge of them was valued from this point of view.

The area of biological knowledge which Darwin was the first to subject to scientific method and to render, as it were, contributory to the great stream formed by the union of the various branches, is that which relates to the breeding of animals and plants, their congenital variations, and the transmission and perpetuation of those variations.

Teleology had, indeed, an important part in the development of physiology - the knowledge of the mechanism, the physical and chemical properties, of the parts of the body of man and the higher animals allied to him.

In many respects Wotton was simply an exponent of Aristotle, whose teaching, with various fanciful additions, constituted the real basis of zoological knowledge throughout the middle ages.

Linnaeus taught zoology and botany as branches of knowledge to be studied for their own intrinsic interest.

The enumeration of orders above given will enable the reader to form some conception of the progress of knowledge relating to the lower forms of life during the fifty odd years which intervened between Linnaeus and Lamarck.

Another special distinction of Cuvier is his remarkable work in comparing extinct with recent organisms, his descriptions of the fossil Mammalia of the Paris basin, and his general application of the knowledge of recent animals to the reconstruction of extinct ones, as indicated by fragments only of their skeletons.

Cuvier's morphological doctikne received its fullest development in the principle of the " correlation of parts," which he applied to palaeontological investigation, namely, that every animal is a definite whole, and that no part can be varied without entailing correlated and law-abiding variations in other parts, so that from a fragment it should be possible, had we a full knowledge of the laws of animal structure or morphology, to reconstruct the whole.

The classification adopted by Owen in his lectures (1855) does not adequately illustrate the progress of zoological classifi- knowledge between Cuvier's death and that date, but, such as it is, it is worth citing here.

Huxley (1825-1895), all of whom individually contributed very greatly by their special discoveries and researches to the increase of exact knowledge.

They were attempts to arrive at a true knowledge of the relationships of animals by " royal roads "; their followers were landed in barren wastes.

But it was only after Darwin that the cell-theory of Schwann was extended to the embryology of the animal kingdom generally, and that the knowledge of the development of an animal became a knowledge of the way in which the millions of cells of which its body is composed take their origin by fission from a smaller number of cells, and these at last from the single egg-cell.

Kolliker (Development of Cephalopods, 1844), Remak (Development of the Frog, 1850), and others had laid the foundations of this knowledge in isolated examples; but it was Kovalevsky, by his accounts of the development of Ascidians and of Amphioxus (1866), who really made zoologists see that a strict and complete cellular embryology of animals was as necessary and feasible a factor in the comprehension of their relationships as at the beginning of the century the coarse anatomy had been shown to be by Cuvier.

On the one hand, the true method of arriving at a knowledge of the genealogical tree was recognized as lying chiefly in attacking the problem of the genealogical relationships of the smallest twigs of the tree, and proceeding from them to the larger branches.

Another important factor in the present condition of zoological knowledge as represented by classification is the doctrine of degeneration propounded by Anton Dohrn.

That which we term the Record of the Past comprises the " taboos,' the customs, the traditions, the beliefs, the knowledge which are handed on by one generation to another independently of organic propagation.

The result is the creation of an almost inconceivably vast body of traditional custom, law and knowledge into which every human being is born, less in the more isolated and barbarous communities, but large everywhere.

The educated man who has acquired new experiences, new knowledge, can place these on the great Record for the benefit of future generations of men, but he cannot bodily transmit his acquirements to his offspring.

When this came to the knowledge of his subjects he was murdered, and Octamasadas, his son by the third wife, reigned in his stead.

Moreover Silva possessed a knowledge of stagecraft, and, if he had lived, he might have emancipated the drama in Portugal from its dependence on foreign writers; but the triple licence of the Palace, the Ordinary and the Inquisition, which a play required, crippled spontaneity and freedom.

The rest deals with the events of the war (67-73) which fell more or less within his own knowledge.

Sometimes, also, he gives proof of some knowledge of Hebrew and supplements his scriptural authorities, which include I Esdras, from general Greek histories.

Except as regards philosophical and religious speculation, his writings show a range of interest and knowledge quite unparalleled in that generation.

More extraordinary still was his knowledge of music - an accomplishment which seems to have been his earliest recommendation to Otto I.

Despite his residence on the Spanish mark, he shows no token of a knowledge of Arabic, a fact which is perhaps sufficient to overthrow the statement of Adhemar as to his having studied at Cordova.

Neither he (Jameson) nor Rhodes had any knowledge of a proposal, to which General Botha had publicly referred, that Charles Leonard should be president.

Its constitution for this purpose was anomalous, as it consisted almost entirely of Transvaal officials whose knowledge of the requirements of the industry was scanty.

Ample facilities were given for the teaching of Dutch, but it was provided that no pupil should be promoted to a higher standard unless he (or she) was making satisfactory progress in the knowledge of English.

On the other hand, the biological sciences are sharply marked off from the abiological, or those which treat of the phenomena manifested by not-living matter, in so far as the properties of living matter distinguish it absolutely from all other kinds of things, and as the present state of knowledge furnishes us with no link between the living and the not-living.

The difference in technical methods and the historical evolution of teaching posts (for in all civilized countries the progress of biological knowledge has been very closely associated with the existence of institutions for the diffusion of knowledge and for professional education) have been the chief contributory causes to this practical confusion.

It is presented as a solution of the problem of explaining the nature of our knowledge of the external world.

His education, begun under a private tutor, was continued (1712) at Trinity Hall, Cambridge; here he remained little more than a year and seems to have read hard, and to have acquired a considerable knowledge of ancient and modern languages.

He declined any knowledge of the Apology for a late Resignation, in a Letter from an English Gentleman to his Friend at The Hague, which ran through four editions in 1748, but there is little doubt that he was, at least in part, the author.

Thirdly, when Xenophanes himself says that theories about gods and about things are not knowledge, that his own utterances are not verities but verisimilitudes, and that, so far from learning things by revelation, man must laboriously seek a better opinion, he plainly renounces the "disinterested pursuit of truth."

In the judgment of the present writer, Xenophanes was neither a philosopher nor a sceptic. He was not a philosopher, for he despaired of knowledge.

He was not a sceptic, if by "sceptic" is meant the misologist whose despair of knowledge is the consequence of disappointed endeavour, for he had never hoped.

He rendered great service to the Revolution by his practical knowledge of education.

It includes no scientific idea, no knowledge of the natural sciences, and neglects even the most rudimentary instruction conveyed in a European education.

Our knowledge of the life of the celebrated Latin playwright, Publius Terentius Afer, is derived chiefly from a fragment of the lost work of Suetonius, De viris illustribus, preserved in the commentary of Donatus, who adds a few words of his own.

After bringing out these plays Terence sailed from Greek parts, either to escape from the suspicion of publishing the works of others as his own, or from the desire to obtain a more intimate knowledge of that Greek life which had hitherto been known to him only in literature and which it was his professed aim to reproduce in his comedies.

Bottger of Frankfort and Otto and Knop, all of whom added to our knowledge of the subject, the last-named introducing the use of sulphuric along with nitric acid in the nitration process.

Our present-day knowledge prompts the adoption of a middle course between the two theories.

At no time has so much been done to advance our knowledge of diseases of the nervous system as during the last thirty years of the 19th century.

It is largely to researches on the bone marrow that we owe our present knowledge of the origin and the classification of the different cellular elements of the blood, both erythrocytes or red corpuscles, and the series of granular leucocytes or white corpuscles.

Pathological chemistry has been remarkable chiefly for the knowledge we have obtained of the nature of bacterial poisons.

Disease as an entity - as something to which all living matter is subject - is what the pathologist has to recognize and to investigate, and the practical application of the knowledge thus acquired follows as a natural consequence.

According to our present knowledge of physiological and pathological processes, we must regard the cell as the ultimate biological unit - a unit of structure and a unit of function; this was first put forward by Schleiden in 1838, and by Schwann in 1839, but we owe to Virchow the full recognition of the fundamental importance of the living cell in all the processes of life, whether in health or disease.

Their investigations on cancers found in the lower animals, and the successful transplantation of such growths into a new host of the same species (mice and rats), have greatly advanced our knowledge of the etiology of this disease.

The recognition of the dangers accompanying the drinking of polluted water or milk, or of those attached to the breathing of a germ-polluted atmosphere, has been the natural sequence of an improved knowledge of pathology in its bacteriological relationships.

It is of course possible that Map's rise at court may have been due to his having hit the literary taste of the monarch, who, we know, was interested in the Arthurian tradition, but it must be admitted that direct evidence on the subject is practically nil, and that in the present condition of our knowledge we can only advance possible hypotheses.

In the fourth place, these views of the "natural history of disease" (in modern language) led to habits of minute observation and accurate interpretation of symptoms, in which the Hippocratic school was unrivalled in antiquity, and has been the model for all succeeding ages, so that even in these days, with our enormous advances in knowledge, the true method of clinical medicine may be said to be the method of Hippocrates.

In anatomy and physiology little advance had been made, and so of pathology in the sense of an explanation of morbid processes or knowledge of diseased structures there could be very little.

Diagnosis, or recognition of the disease, must have been necessarily imperfect, when no scientific nosology or system of disease existed, and the knowledge of anatomy was quite inadequate to allow of a precise determination of the seat of disease; but symptoms were no doubt observed and interpreted skilfully.

The general conception of the physician's aim and task remained the same, though, as knowledge increased, there was much divergence both in theory and practice - even opposing schools were found to be developing some part of the Hippocratic system.

The Peripatetic school may have been more favourable to the development of medicine, as of other departments of natural knowledge, than any other; but there is no evidence that any of the philosophical schools had important influence on the progress of medicine.

These three bases of knowledge were known as the "tripod" of the empirics.

They were extremely successful in practical matters, especially in surgery and in the use of drugs, and a large part of the routine knowledge of diseases and remedies which became traditional in the times of the Roman empire is believed to have been derived from them.

It is clear that the knowledge of function (physiology) did not by any means keep pace with the knowledge of structure, and this was probably the reason why the important sect of the empirics were able entirely to dispense with anatomical knowledge.

His knowledge of disease and surgical skill were, as appears from the accounts given by Celsus and Caelius Aurelianus, very considerable.

Soranus is known by a work, still extant in the Greek original, on the diseases of women, and also by the Latin work of Caelius Aurelianus, three centuries later, on acute and chronic diseases, which is based upon, if not, as some think, an actual translation of, the chief work of Soranus, and which is the principal source of our knowledge of the methodic school.

The work on diseases of women is the only complete work on that subject which has come down to us from antiquity, and shows remarkable fullness of practical knowledge in relation to its subject.

His well-known work, De medicina, was one of a series of treatises intended to embrace all knowledge proper for a man of the world.

The whole body of medical literature belonging to the Hippocratic and Alexandrian times is ably summarized, and a knowledge of the state of medical science up to and during the times of the author is thus conveyed to us which can be obtained from no other source.

Galen was a man furnished with all the anatomical, medical and philosophical knowledge of his time; he had studied all kinds of natural curiosities, and had stood in near relation to important political events; he possessed enormous industry, great practical sagacity and unbounded literary fluency.

But there is enough to show the thoroughness and extent of his practical knowledge.

The work by which he is chiefly known, the celebrated "canon," is an encyclopaedia of medical and surgical knowledge, founded upon Galen, Aristotle, the later Greek physicians, and the earlier Arabian writers, singularly complete and systematic, but is thought not to show the practical experience of its author.

The origin of this, the most important source of medical knowledge in Europe in the early middle ages, is involved in obscurity.

The latter gave rise, on the one hand, to the modern science of botany, on the other to a more rational knowledge of drugs and their uses.

Since a knowledge of Greek was still confined to a small body of scholars, and a still smaller proportion of physicians, the first task was to translate the Greek classics into Latin.