He also investigated electrical endosmosis and the electrical resistance of electrolytes.
The constitution of fulminic acid has been investigated by many experimenters, but apparently without definitive results.
After the rising in Cheshire Cooper was arrested in Dorsetshire on a charge of corresponding with its leader Booth, but on the matter being investigated by the council he was unanimously acquitted.
After the rising in Cheshire Cooper was arrested in Dorsetshire on a charge of corresponding with its leader Booth, but on the matter being investigated by the council he was unanimously acquitted.
Similarly he represented the reactions investigated by Liebig and Wehler on benzoyl compounds as double decompositions.
Henry in the United States in 1842 and 1850 investigated the effect.
If the police investigated in an orderly way and took their time the victim would most likely be harmed or killed.
Is Brenda Washington's murder being investigated as tied to the death of Rupert Youngblood in California and the deputy sheriff in Alabama?
The first formed portion of the stern in all species of Selaginella which have been investigated possesses an exarch haplostele.
Weber, which was found capable of explaining all the phenomena investigated by Ampere as well as the induction currents of Faraday.
In the Metanemertini, as far as they have been investigated, a direct development without metamorphosis has been observed.
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.
The general structure of the Molluscan intestine has not been sufficiently investigated to render any comparison of this structure of Patella with that of other Mollusca possible.
Sarah, your stock dealings have outperformed the market every year since 1933, of course you're going to be investigated.
The peculiar action of electric sparks and waves in reducing the resistance of discontinuous conductors was rediscovered and investigated by Calzecchi Onesti,' by Branly, 2 Dawson Turner, 3 Minchin, Lodge, 4 and many others.
1840), who carefully investigated and described the facts of anatomical structure without attempting to fit them into preconceived views of their meaning.
The digestion of fat or oil has not been adequately investigated, but its decomposition in germinating seeds has been found to be due to an enzyme, which has been called lipase.
The terrible losses sustained by whole communities of farmers, planters, foresters, &c., from plant diseases have naturally stimulated the search for remedies, but even now the search is too often conducted in the spirit of the believer in quack medicines, although the agricultural world is awakening to the fact that before any measures likely to be successful can be attempted, the whole chain of causation of the disease must be investigated.
Warming states that the stomata of true, succulent, littoral halophytic herbs, in cases so far investigated, are not sunken (1909: 221).
Fertilization is effected by the union of two nuclei in all those cases which have been carefully investigated.
Of this copious remains have been found in Switzerland and have been investigated with great ability by 0.
Forbes had investigated such important genera as Philepitta and Xenicus, P.L.
The "blue sulphur," described by Orloff, has been investigated by Paterno and Mazzucchelli (Abs.
The wonderful transformations of these insects were first investigated by G.
The chief points in the life-history of Stylops and Xenos, which are parasitic on certain bees (Andrena) and wasps (Polistes), have been investigated by K.
The resistance of goods wagons has not been so systematically investigated.
of causes which have not yet been fully investigated, the theory which is first found in Cyprian became the dominant belief of Western Christendom.
He initiated in 1866 the spectroscopic observation of sunspots; applied Doppler's principle in 1869 to determine the radial velocities of the chromospheric gases; and successfully investigated the chemistry of the sun from 1872 onward.
The history of the wolf in the British Isles, and its gradual extirpation, has been thoroughly investigated by Mr J.
Hess (18 4 o) were the first who systematically investigated thermochemical effects in solution, and arrived at conclusions from their experimental data which still possess validity.
remains both at Mycenae and Tiryns, still imperfectly investigated, show that this Cretan influence goes back to the Middle Minoan age, with its characteristic style of polychrome vase decoration.
In the young stages of this worm which have been investigated by W.
Scheele and named Olsiiss (principe doux des huiles - sweet principle of oils), and more fully investigated subsequently by M.
The first disease investigated by Pasteur was that of chicken cholera, an epidemic which destroyed io% of the French fowls; after the application of the preventive method the death-rate was reduced to below i %.
Decaisne, who made the subject one of critical study for a number of years, and not only investigated the wild forms, but carefully studied the peculiarities of the numerous varieties cultivated in the Jardin des Plantes at Paris, refers all cultivated pears to one species, the individuals of which have in course of time diverged in various directions, so as to form now six races: (I) the Celtic, including P. cordata; (2) the Germanic, including P. communis, P. achras, and P. piraster; (3) the Hellenic, including P. parviflora, P. sinaica and others; (4) the Pontic, including P. elaeagrifolia; (5) the Indian, comprising P. Paschae; and (6) the Mongolic, represented by P. sinensis.
The imaginal disks make their appearance (that is, have been first detected) at very different epochs in the life; their absolute origin has been but little investigated.
Chladni's experiment of strewing a vibrating bell with flour, investigated the nature of sound and the function of the air in respiration and combustion, and originated the idea of using the pendulum as a measure of gravity.
Xnyviaicos, ribbon), a quartic curve invented by Jacques Bernoulli (Acta Eruditorum, 1694) and afterwards investigated by Giulio Carlo Fagnano, who gave its principal properties and applied it to effect the division of a quadrant into 2 2 m, 3.2 m and 5.2 m equal parts.
While the insect fauna of European countries was investigated by local naturalists, the spread of geographical exploration brought ever-increasing stores of exotic material to the great museums.
The "sources" made use of by Orosius have been investigated by T.
While the subject of the testing of petroleum for legislative purposes has been investigated in Great Britain by committees of both branches of the legislature, with a view to change in the law, the standard has never been raised, since such a course would tend to reduce the available supply and thus lead to increase in price or deterioration in quality.
Becoming convinced that the common law in America, and particularly in New York state, needed radical changes in respect to the unification and simplification of its procedure, he visited Europe in 1836 and thoroughly investigated the courts, procedure and codes of England, France and other countries, and then applied himself to the task of bringing about in the United States a codification of the common law procedure.
With Sydney Young and others he investigated the critical state and properties of liquids and the relationship between their vapour pressures and temperature, and with John Shields he applied measurements of the surface tension of liquids to the determination of their molecular complexity.
Metallurgical operations, such as smelting, roasting, and refining, were scientifically investigated, and in some degree explained, by Georg Agricola and Carlo Biringuiccio; ceramics was studied by Bernard Palissy, who is also to be remembered as an early worker in agricultural chemistry, having made experiments on the effect of manures on soils and crops; while general technical chemistry was enriched by Johann Rudolf Glauber.1
Carbon was joined with silicon, zirconium and titanium, while boron, being trivalent, was relegated to another group. A general classification of elements, however, was not realized by Frankland, nor even by Odling, who had also investigated the question from the valency standpoint.
Atmospheric air was carefully investigated by Cavendish, who showed that it consisted of two elementary constituents: nitrogen, which was isolated by Rutherford in 1772, and oxygen, isolated in 1774; and Black established the presence, in minute quantity, of carbon dioxide (van Helmont's gas sylvestre).
This element was investigated at a later date by Sir Henry Roscoe, and more thoroughly and successfully by C. Zimmermann and Alibegoff.
Of especial note are the curious compounds formed by the union of carbon monoxide with platinous chloride, discovered by Paul Schiitzenberger and subsequently investigated by F.
Thenard discovered hydrogen dioxide, one of the most interesting inorganic compounds known, which has since been carefully investigated by H.
Hydrobromic and hydriodic acids were investigated by Gay Lussac and Balard, while hydrofluoric acid received considerable attention at the hands of Gay Lussac, Thenard and Berzelius.
Gay Lussac investigated chloric acid; Stadion discovered perchloric acid, since more fully studied by G.
Serullas and Roscoe; Davy and Stadion investigated chlorine peroxide, formed by treating potassium chlorate with sulphuric acid.
Davy also described and partially investigated the gas, named by him " euchlorine," obtained by heating potassium chlorate with hydrochloric acid; this gas has been more recently examined by Pebal.
In 1845 a further contribution to the study of allotropy was made by Anton Schrotter, who investigated the transformations of yellow and red phosphorus, phenomena previously noticed by Berzelius, the inventor of the term " allotropy."
The allotropy of selenium was first investigated by Berzelius; and more fully in 1851 by J.
Hittorf, who carefully investigated the effects produced by heat; crystalline selenium possesses a very striking property, viz.
Formerly the sparkand absorption-spectra were the sole methods available; a third method was introduced by Crookes, who submitted the oxides, or preferably the basic sulphates, to the action of a negative electric discharge in vacuo, and investigated the phosphorescence induced spectroscopically.
Klaproth and Vauquelin also investigated this earth, but without detecting that it was a complex mixture - a discovery reserved for C. G.
Noetling (Ber., 1885, 18, p. 2657), who investigated the nitro-, amino-, and oxy-xylenes in their relations to the three xylenes or dimethyl benzenes.
2 3, p. 2 377) investigated the condensation of pyroracemic acid, CH 3 CO 000H, with various aliphatic aldehydes, and obtained from two molecules of the acid and one of the aldehyde in the presence of baryta water alkylic isophthalic acids: with acetaldehyde [1.3.51-methylisophthalic acid or uvitic acid, C 6 H 3 CH 3 (000H) 2, was obtained, with propionic aldehyde [1.3.
Carius showed that potassium chlorate and sulphuric acid oxidized benzene to trichlorphenomalic acid, a substance afterwards investigated by Kekule and 0.
The action of chlorine upon diand tri-oxybenzenes has been carefully investigated by Th.
Thomsen then investigated heats of combustion of various benzenoid hydrocarbons - benzene, naphthalene, anthracene, phenanthrene, &c. - in the crystallized state.
Trans., 1900, p. 233) investigated nickel and cobalt over a wide range of temperature (from -182.5° to loo°); his results are: It is evident that the atomic heats of these intimately associated elements approach nearer and nearer as we descend in temperature, approximating to the value 4.
The question of the dependence of refractive index on temperature was investigated in 1858 by J.
He introduced the idea of comparing the refractivity of equimolecular quantities of different substances by multiplying the function (n-1)/d by the molecular weight (M) of the substance, and investigated the relations of chemical grouping to refractivity.
Briihl, have investigated the relations existing between the refractive power and composition.
The theories of colour have also been investigated by Hantzsch, who first considered the nitro-phenols.
This theorem was investigated by Sir W.
von Hauer has investigated a number of cases in which salts exhibiting episomorphism have different colours, thereby clearly demonstrating this property of isomorphism.
The New York Museum has further investigated the Middle Kingdom pyramid field at Lisht and its neighbourhood, 53 and Prof. Petrie and Mr. Brunton have found fine XII.
He also investigated the diamagnetic and paramagnetic properties of substances; and was keenly interested in the phenomena of electrochemical decomposition, accumulating much evidence in favour of Faraday's law and proposing a modified statement of it which was intended to cover certain apparent exceptions.
with the duke of Burgundy; finally, they investigated and judged numbers of private cases, lawsuits between prelates, members of religious orders and holders of benefices, thus themselves falling into one of the serious abuses for which they had most blamed the court of Rome.
Even in the 19th century reports were spread of communities in which Indian blood was supposedly still plainly dominant; but the conclusion of the competent scientists who have investigated such rumours has been that at least absolutely nothing of the language and traditions of the aborigines has survived.
pharm., 1835, 21, p. 315) by the action of ammonia on sulphur chloride, has been investigated by 0.
Eaton and others have given us valuable works or monographs on the family; but the subject still remains little understood, partly owing to the great difficulty of preserving such delicate insects; and it appears probable they can only be satisfactorily investigated as moist preparations.
Plant albumins or phyto-albumins have been chiefly investigated in the case of those occurring in seeds; most are globulins,.
ii., Leipzig, 1893) investigated the relative affinities of acids for potash, soda and ammonia, and proved them to be independent of the base used.
The above account applies more particularly to Crania, but in the main it is applicable to the other Inarticulata which have been investigated.
In spite of some assertions to the contrary, all the Brachiopods which have been carefully investigated have been found to be male or female.
Functional determinants were first investigated by Jacobi in a work De Determinantibus Functionalibus.
The system of four forms, of which two are linear and two quadratic, has been investigated by Perrin (S.
The ternary cubic has been investigated by Cayley, Aronhold, Hermite, Brioschi and Gordan.
The system of two ternary quadratics consists of 20 forms; it has been investigated by Gordan (Clebsch-Lindemann's Vorlesungen i.
It is in the Montagne Noire rather than in the Cevennes proper that the structure of the chain has been most fully investigated.
The applicability of the law to cobalt has been investigated by Fleming (Phil.
23) were furnished with a pair of truncated cones b b, of soft iron forming an extension of the conical ends of the bobbin c. The most suitable form for the pole faces is investigated in the paper, and the conclusion arrived at is that to produce the greatest concentration of force upon the central neck, the cones FIG.
Thomson), and was subsequently investigated by Ewing and Cowan.
They also investigated the ' magnetic behaviour of various nickelsteels under tension, and found that there was always increase of magnetization.
Mag., 1898, 46, 261) have investigated the effects of hydrostatic pressure upon magnetization, using the same pieces of iron and nickel as were employed in their experiments upon magnetic change of volume.
p. 57) also investigated the changes which occurred in permanently 1 C.R., 1888, 106, 129.
The subject was further investigated by S.
The subject, which is of importance in connexion with theories of magnetostriction, has been investigated by K.
He also carried out some new experiments on the effects of heat, and of screening by magnetic substances, and investigated the influence of shape upon the magnetization of iron.
The functions of these gastric diverticula have never been carefully investigated.
An important fact in its favour was discovered by Laurie (17), who investigated the embryology of two species of Scorpio under Lankester's direction.
There are comparatively few (10) species of plants which are endemic as far as the flora has been investigated, and it is probable that most of them are also existing in the Comoros, where the flora is not well known..
Acetaldehyde, CH3ï¿½CHO, was first noticed by C. Scheele in 1774 and isolated and investigated by J.
Wohler, he investigated the allotropic forms of silicon and boron.
He investigated also the variations of temperature in the atmosphere and ocean.
The coal resources of the southern states were investigated in 1904, under the auspices of the national government, by Dr J.
The acropolis of Geronthrae, a hero-shrine at Angelona in the south-eastern highlands, and the sanctuary of Ino-Pasiphae at Thalamae have also been investigated.
(Pozsony, 1847), John Czech, Gustavus Wenczel, Frederick Pesty and Paul Szlemenics as writers on legal history; Joseph Bajza, who in 1845 commenced a History of the World; Alexander Szilagyi, some of whose works, like those of Ladislaus KOvary, bear on the past of Transylvania, others on the Hungarian revolution of 1848-1849; Charles L, nyi and John Pauer, authors of treatises on Roman Catholic ecclesiastical history; John Szombathi, Emeric Revesz and Balogh, writers on Protestant church history; William Fraknoi, biographer of Cardinal Pazman, and historian of the Hungarian diets; and Anthony Gevay, Aaron Sziladi, Joseph Podhradczky, Charles Szabo, John Jerney and Francis Salamon, who have investigated and elucidated many special historical subjects.
Here Cuvier was imperfectly formulating, without recognizing the real physical basis of the phenomena, the results of the laws of heredity, which were subsequently investigated and brought to bear on the problems of animal structure by Darwin.
It may be well therefore to remember that precisely these laws apply to a secondary wave of sound, which can be investigated upon the strictest mechanical principles.
This class of phenomena was investigated by J.
The resolving power of a telescope with circular or rectangular aperture is easily investigated experimentally.
The resolving power of telescopes was investigated also by J.
The light in the proposed direction is that determined by the size of the small aperture in accordance with the laws already investigated, and its phase depends upon the position of the aperture.
The formula expressing the optical power of prismatic spectroscopes may readily be investigated upon the principles of the wave theory.
9) as we pass across the grating has been investigated by M.
226) has shown that success may be attained by a variety of processes, including bichromated gelatin and the old bitumen process, and has investigated the effect of imperfect approximation during the exposure between the prepared plate and the original.
- The phenomena to be considered under this head are of less importance than those investigated by Fraunhofer, and will be treated in less detail; but in view of their historical interest and of the ease with which many of the experiments may be tried, some account of their theory cannot be omitted.
Knockenhauer, and are readily investigated.
Similarly, the third, fourth and higher orders of bows may be investigated.
Impressed with the perversions and corruptions of popular Hinduism, Ram Mohan Roy investigated the Hindu Shastras, the Koran and the Bible, repudiated the polytheistic worship of the Shastras as false, and inculcated the reformed principles of monotheism as found in the ancient Upanishads of the Vedas.
Now the cellular pathology of the blood, investigated by the aid of modern staining methods, is as important as that of the solid organs; no clinical investigator - indeed, apart from research, no practitioner at this day - can dispense with examination of the blood for purposes of diagnosis; its coagulability and the kinds and the variations of the cells it contains being evidence of many def i nitely morbid states of the body.
Matters were brought to a crisis towards the close of 1885, when the Burmese government imposed a fine of £230,000 on the BombayBurma Trading Corporation, and refused to comply with a suggestion of the Indian government that the cause of complaint should be investigated by an impartial arbitrator.
Aided by grants from the Prussian government, these workers systematically investigated the effect of introducing a large number of different chemical substances (oxides) into vitreous fluxes.
Hulme, however, who has carefully investigated the subject, is of opinion that flint-glass in its present form was introduced about 1730.
The friction of water, investigated for slow speeds by Coulomb, was measured for higher speeds by William Froude (1810-1879), whose work is of great value in the theory of ship resistance (Brit.
The stability of a ship is investigated practically by inclining it; a weight is moved across the deck and the angle is observed of the heel produced.
If a fourth integral is obtainable, the solution is reducible to quadrature, but this is not possible except in a limited series of cases, investigated by H.
The effect of an external circulation of vortex motion on the motion of a cylinder has been investigated in § 29; a similar procedure will show the influence of circulation through a hole in a solid, taking as the simplest illustration a ring-shaped figure, with uniplanar motion, and denoting by the resultant axial linear momentum of the circulation.
192, resembling the trochoidal curves, which can be looped, investigated in § 29 for the motion of a cylinder under gravity, when surrounded by a vortex.
The sugars obtained from honey were investigated by Lowitz and Proust, and the latter decided on three species: (I) cane sugar, (2) grape sugar, and (3) fruit sugar; the first has the formula C12H2201,, the others C 6 H 12 0 6.
Large estates in Pisidia and the adjoining parts of Phrygia belonged to the Roman emperors; and their administration has been investigated by Ramsay and others.
The finer structure of the animal has been investigated by Mrazek (to), whose account, however, is published in the Hungarian language.
Much of the work carried on by these organisms is not clearly understood; there are, however, certain processes which have been extensively investigated and to these it is necessary to refer.
The matter has been fully investigated by Mr A.
Other tests show variability in burning quality, elasticity of leaf, texture, taste, &c. The United States Department of Agriculture has closely investigated this important question and the results attained are brought together by Messrs H.
These and the ancient copper workings were investigated by Burton in 1877.
==Flora== The flora of Arabia has been investigated by P. Forskal, the botanist of Niebuhr's mission, P. E.
About the same time Francesco Maurolico, or Maurolycus, the eminent mathematician of Messina, in his Theore y nata de Lumine et Umbra, written in 1521, fully investigated the optical problems connected with vision and the passage of rays of light through small apertures with and without lenses, and made great advances in this direction over his predecessors.
The ovicells are modified zooecia, and contain numerous embryos which in the cases so far investigated arise by fission of a primary embryo developed from an egg.
264-265), which investigated and condemned the heresies of Paul of Samosata; and the rapid spread in Pontus of a Trinitarianism approaching the Nicene type is attributed in large measure to the weight of his influence.
" Now for the interpolation of the rest, I considered that the denominators I, 3, 5, &c., were in arithmetical progression; and that therefore only the numerical coefficients of the numerators were to be investigated.
At about the same time Boyle investigated several acids; he established their general reddening of litmus, their solvent power of metals and basic substances, and the production of neutral bodies, or salts, with alkalies.
We know now that in so far as life and living matter can be investigated by science, animals and plants cannot be described as being alive in different degrees.
Thomas's Crystal Gazing the history and anthropology of the subject are investigated, with modern instances.
Special points of importance in the history of Montanism have been investigated by Lipsius, Overbeck, Weizsacker (Theol.
Unanimously he and his staff agreed that this fresh enemy could only be the advanced guard of a large Prussian force, possibly, it was suggested, of the crown prince's army, from Alsace and Nancy, and a fresh delay arose while the situation was investigated.
Considering the important part played by the Egyptian sojourn of the Hebrews, as narrated in the Scriptures, it was certainly not an overenthusiastic prediction that the Egyptian monuments when fully investigated would divulge important references to Joseph, to Moses, and to the all-important incidents of the Exodus; but half a century of expectant attention in this direction has led only to disappointment.
The question was definitely investigated by Sir W.
Thoulet's solution, an aqueous solution of potassium and mercuric iodides (potassium iodo-mercurate), introduced by Thoulet and subsequently investigated by V.
rend., 1905, p. 141) has investigated the solutions of mercuric iodide in other alkaline iodides; sodium iodo-mercurate solution has a density of 3.46 at 26°, and gives with an excess of water a dense precipitate of mercuric iodide, which dissolves without decomposition in alcohol; lithium iodo-mercurate solution has a density of 3.28 at 25.6°; and ammonium iodo-mercurate solution a density of 2.98 at 26°.
To do this with a heavy lead Sea in 1895-1898, while the Russians investigated the Black attached required a very strong hemp line, and the twine used Sea in 1890-1893.
Red clay is the deposit peculiar to the abysmal area; 70 carefully investigated samples collected by the " Challenger " came from an average depth of 2730 fathoms, 97 specimens collected by the " Tuscarora " came from an average depth of 2860 fathoms, and 26 samples obtained by the " Albatross " in the Central Pacific came from an average depth of 2620 fathoms. Red clay has not yet been found in depths less than 2200 fathoms. The main ingredient of the deposit is a stiff clay which is plastic when fresh, but dries to a stony hardness.
The compressibility of sea-water is not yet fully investigated.
Fox, of the Central Laboratory of the International Council at Christiania, has investigated the relation of the atmospheric gases to sea-water by very exact experimental methods and arrived at the following expressions for the absorption of oxygen and nitrogen by sea-water of different degrees of concentration.
The vertical distribution of salinity has only recently been investigated systematically, as the earlier expeditions were not equipped with altogether trustworthy apparatus for collecting water samples at great depths.
The nature of the gases evolved by coal when freshly exposed to the atmosphere has been investigated by several chemists, more particularly by Lyon Playfair and Ernst von Composi- Meyer.
The properties of liquid and solid acetylene have been investigated by D.
This compound was afterwards fully investigated by J.
In 1784 he was on the committee which investigated Mesmer, and the report is a document of lasting scientific value.
Butterflies, moths and bees are very abundant, the former being remarkable for their size and splendid coloration; but these groups have not been investigated exhaustively enough to afford a correct idea of their number or their true affinities.
So far the highest altitudes yet botanically investigated are those of the Owen Stanley range and the mountains in Kaiser Wilhelms Land, but of the flora of the highest range of all - the Charles Louis mountains - nothing is known.
In 1677 he described and illustrated the spermatozoa in dogs and other animals, though in this discovery Stephen Hamm had anticipated him by a few months; and he investigated the structure of the teeth, crystalline lens, muscle, &c. In 1680 he noticed that yeast consists of minute globular particles, and he described the different structure of the stem in monocotyledonous and dicotyledonous plants.
In the same spirit he investigated the generation of eels, which were at that time supposed, not only by the ignorant vulgar, but by "respectable and learned men," to be produced from dew without the ordinary process of generation.
The plan of the agora and adjacent buildings has been recovered, and the walls have been completely investigated.
For the period 1662-1666, when Massachusetts was investigated by royal commissioners, see Collections of the Massachusetts Historical Society, series 2, vol.
Cavendish made many analyses: from more than soo determinations of air in winter and summer, in wet and clear weather, and in town and country, he discerned the mean composition of the atmosphere to be, oxygen 20 833% and nitrogen 79.167% The same experimenter noticed the presence of an inert gas, in very minute amount; this gas, afterwards investigated by Rayleigh and Ramsay, is now named argon.
"not pulled aside," not distracted by synchronous sensations, but shown to be in harmony with them) when compared with others; probable, uncontradicted, and thoroughly investigated and confirmed.
Simultaneously a parliamentary commission of inquiry investigated the condition of the state banks.
Its conditions were investigated from photometric data, by Professor E.
Mag., 1879, 7, p. 219) investigated the transmission of a report from a cannon in different directions; he found that it rose to a maximum of 1267 ft./sec. at 70, to 90 ft.
- Helmholtz investigated the velocity of propagation of sound in pipes, taking into account the viscosity of the air (Rayleigh, Sound, ii.
§ 347), and Kirchhoff investigated it, taking into account both the viscosity and the heat communication between the air and the walls of the pipe (loc. cit.
This want of proportionality will have a periodicity, that of the impinging waves, and so will produce vibrations just as does the variation of pressure in the case last investigated.
The third mode of production of combination tones, the production in the medium itself, follows from the varying velocity of different parts of the wave, as investigated at the beginning of this article.
Staffordshire, the diorites of Warwickshire, the phonolite of the Wolf Rock (to which he first directed attention), the pitchstones of Arran and the altered igneous rocks near the Land's End were investigated and described by him during the years1869-1879in the Quarterly Journal of the Geological Society and in the Geological Magazine.
This subject was investigated by Archimedes, who, by his "method of exhaustions," derived the principal results.
Proust also investigated the varieties of sugar that occur in sweet vegetable juices, distinguishing three kinds, and he showed that the sugar in grapes, of which he announced the existence to his classes at Madrid in 1799, is identical with that obtained from honey by the Russian chemist J.
The electrolytic isolation of calcium has been carefully investigated, and this is the method followed for the commercial production of the metal.
The whole subject of fertilization and development of the embryo has been more recently investigated with great assiduity and zeal, as regards both cryptogamous and phanerogamous plants, and details must be sought in the various special articles.
The nature of the motion, if any, that is produced in the surrounding regions of the aether by the translation of matter through it can be investigated by optical experiment.
and Mme Curie, and investigated by them and by E.
With Dr Hugo Miller as his collaborator he published several papers of a chemical character between the years 1856 and 1862, and investigated, 1868-1883, the discharge of electricity through gases by means of a battery of 14,600 chloride of silver cells.
have been investigated by competent palaeographers.
The distribution of temperature in the waters of the Pacific Ocean has been fully investigated, so far as is possible with the existing observations, by G.
He left nothing in doubt if experiment would decide it, and he evidently did not consider that he had fully investigated any compound until he could both unmake and remake it.
In 1775 he investigated arsenic acid and its reactions, discovering arseniuretted hydrogen and "Scheele's green" (copper arsenite), a process for preparing which on a large scale he published in 1778.
In the last years of his life he returned to the vegetable acids, and investigated citric, malic, oxalic and gallic acids.
The probable errors and eccentricities of small micrometer-screws have been carefully investigated to ± 0.00001 inch; but the accuracy of leading screws used in workshops has not been sufficiently verified.
On account of the great size of this table, and for other reasons, it never 2 The smallest number of entries which are necessary in a table of logarithms in order that the intermediate logarithms may be calculable by proportional parts has been investigated by J.
Harrison, Mother Shipton investigated (London, 1881); Journ.
Becquerel, however, investigated the character of the dispersion by using prism-shaped flames strongly coloured with sodium.
limax, a slug), a curve invented by Blaise Pascal and further investigated and named by Gilles Personne de Roberval.
The following examples have been investigated: Trypanosoma lewisi (also, but much less completely, T.
Iodine vapour on heating passes from a violet colour to a deep indigo blue; this behaviour was investigated by V.
Encke, the astronomer who first investigated its orbit and showed its periodicity.
In another department of physical chemistry he investigated the expansion of liquids with heat, and devised a formula for its expression similar to Gay-Lussac's law of the uniformity of the expansion of gases, while so far back as 1861 he anticipated T.
One is situated at Lethbridge, southern Alberta, where problems will be investigated concerning agriculture upon irrigated land and dry farming under conditions of a scanty rainfall.
These charges were investigated by a royal commission, which was appointed after it had been decided that the parliamentary committee named for that purpose could not legally take evidence under oath.
The flora and fauna are scarcely investigated.
In 1893 he investigated the ruins of Axum and other places in the north of Abyssinia, partially made known before by the researches of Henry Salt and others, and The Sacred City of the Ethiopians (1893) gave an account of this expedition.
It was first investigated in 1789 by L.
The question as to whether the motion was due to an irregular distribution of the earth's atmosphere, thus involving abnormal variations in the refractive index, was also investigated; here, again, negative results were obtained.
Lord Rayleigh,' who has also investigated vibrating systems giving series of lines approaching a definite limit of " root," remarks that by dynamical reasoning we are always led to equations giving the square of the period and not the period, while in the equation representing spectral series the simplest results are obtained for the first power of the period.
The beans were first introduced into England in the year 1840; but the plant was not accurately described till 1861, and its physiological effects were investigated in 1863 by Sir Thomas R.
M`Kendrick, of Glasgow, he investigated the physiological action of light, and examined the changes which take place in the electrical condition of the retina under its influence.
He succeeded in liquefying several gases; he investigated the alloys of steel, and produced several new kinds of glass intended for optical purposes.
The fauna of Tibet has been by no means exhaustively investigated, especially the rodents and smaller species of animals.
He next investigated the sources of the Sutlej, made hydrographic investigations of the Manasarowar lakes, with the neighbouring underground waterways, and proceeded thence to Gartok.
The phenomena may be investigated by following a horizontal line across the diagram.
But other relations between the different properties of solutions have been investigated by another series of conceptions which we shall proceed to develop. Some botanical experiments made about 1870 suggested the idea of semi-permeable membranes, i.e.
Whatever view, if any, be adopted as to the nature of a solution, the thermodynamic relations we have investigated equally hold good.
p. 77, 1897.) The behaviour of argon at low temperatures was investigated by K.
In addition to the difficulties presented by the Bible as an historical record, and the literary problems which textual and other critics have investigated, the modern freethinker denies that the Christianity of the New Testament or its interpretation by modern theologians affords a coherent theory of human life and duty.
The matter was carefully investigated, and it was found that the sulphate of magnesia in the sea-water has a decomposing action on Portland cements, especially those which contain a large proportion of lime or even of alumina.
A classical and highly complex case first investigated and explained by R.
He investigated the exact relation of fungus and alga and showed that the same alga is able to combine with a number of different fungi to form lichens; thus Chroolepns umbrinus is found as the gonidia of 13 different lichen genera.
The exact relation of gonidia and hyphae has been investigated e specially by Bornet and also by Hedlund, and very considerable differences have been shown to exist in different genera.
These were investigated by Tulasne in 1853, who gave them the name spermogonia The lower, ventral portion of the sperm09' gonium is lined by delicate hyphae, the sterigmata, which give origin to minute colourless cells, the spermatia.
The chemistry of lichens is very complex, not yet fully investigated and can only be very briefly dealt with here.
A large number of these acids, which are mostly benzene derivatives, have been isolated and more or less closely investigated.
For two years preceding the conference eight representative commissions investigated the following questions: 1 The Statistical Atlas (1910) puts it at £5,071,225, of which British and American societies each find about £2, 000,000, and German societies £427,455.
The action and efficiency of influence machines have been investigated by F.
He investigated the early history of Christianity and penetrated more deeply than any contemporary thinker into the significance of Spinoza's philosophy.
His standpoint was that of the English deists, and he investigated, without hesitation, the evidence for the miracles recorded in the Bible.
The most important are :- Euclid's Elements; Euclid's Data; Optical Lectures, read in the public school of Cambridge; Thirteen Geometrical Lectures; The Works of Archimedes, the Four Books of Apollonius's Conic Sections, and Theodosius's Spherics, explained in a New Method; A Lecture, in which Archimedes' Theorems of the Sphere and Cylinder are investigated and briefly demonstrated; Mathematical Lectures, read in the public schools of the university of Cambridge.
That the north temperate regions appear richest in fungi may be due only to the fact that North America and Europe have been much more thoroughly investigated than other countries; it is certain that the tropics are the home of very numerous species.
Even more important is the question of mycosis in man and other animals, referred to species of Mucor, and investigated by Lucet and Costantin.
The genus Sclerotinia may be mentioned here; a number of forms have been investigated by Woronin.
This reaction (the so-called "Sandmeyer" reaction) has been investigated by A.
This reaction has also been investigated by A.
In this the whole life of the nominee was investigated, and each had to prove that he was physically without flaw.
The substance investigated was acetaldehyde, C 2 H 4 O, in its relation to paraldehyde, a polymeric modification.
Faye in November 1843, the other by Francesco de Vico a year later, were minutely investigated by Leverrier, with the result of disproving the supposed identity of the first with Lexell's lost comet of 1770, and of the other with Tycho's of 1585.
The Russian expedition which investigated the Kara-boghaz in 1896 concluded that there is no permanent subsidence in the level of the sea.
The currents of the Caspian were investigated by the Knipovich expedition; it detected two of special prominence, a south-going current along the west shore and a north-going current along the east shore.
The conductivity of liquids has been investigated by similar methods, generally variations of the thin plate or guard-ring method.
He steadily investigated the muniments of all the colleges, and in 1667 made his first journey to London, where he visited Dugdale, who introduced him into the Cottonian library, and Prynne showed him the same civility for the Tower records.
The Senate refused to confirm the appointment until his record as alien property custodian had been investigated, on the ground that he had made his office a " political machine."
To succeed, it was essential that the fellah should be taught that discipline might be strict without being oppressive, that pay and rations would be fairly distributed, that brutal usage by superiors would be checked, that complaints would be thoroughly investigated, and impartial justice meted out to soldiers of all ranks.
defined, and the origins of the hieroglyphs and of their values had not been investigated beyond the most obvious points.
The known inscriptions of the earlier times are so brief and so limited in range that the system on which they were written cannot yet be fully investigated.
He investigated the relation of benzene to benzoic acid and to other derivatives.
In all the multicellular plants of this group which have been adequately investigated, vegetative multiplication by means of what are known as hormogonia has been found to occur.
From a comparison of those Euchlorophyceae which have been most closely investigated, it appears probable that sexual reproductive cells have in the course of evolution arisen as the result of specialization among asexual reproductive cells, and that in turn oogamous reproduction has arisen as the result of differentiation of the two conjugating cells into the smaller male gamete and the larger male gamete.
The genus Nemalion has been recently investigated by Wolfe with the object of examining the cytological evidence.
These curves were investigated by Rene Descartes, Sir Isaac Newton, Colin Maclaurin and others.
The question of the mental fatigue produced by examinations has been studied by certain German observers, but has not yet been fully investigated.
34-48), of free myristic and stearic acids; the brown colouring matter has not been satisfactorily investigated.
He investigated the expansibility of gases by heat, determining the coefficient for air as 0.003665, and showed that, contrary to previous opinion, no two gases had precisely the same rate of expansion.
The small part of the city, which was investigated at the spot called Gli scavi nuovi (the new excavations) was discovered in the 19th century.
A royal commission investigated the matter in 1871 and since that time the evils which were attendant on the system have been gradually remedied.
The lake has been investigated by L.
Poincare have investigated the forms taken up by rotating masses of fluid.
Seeliger, who investigated this ratio for the stars of the Bonn Durchmusterung and Southern Durchmusterung, came to the conclusion (as summarized by Simon Newcomb) that for these stars the ratio ranges from 3.85 to 3.28, the former value being found for regions near the Milky Way and the latter for regions near the galactic poles.
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