It is probably a poisonous plant, belonging, as it does, to a dangerous cohort.
In tropical waters a sea snake is found, which, though very poisonous, rarely bites.
Was it actually a grape, or some poisonous berry?
Dulce gave her a poisonous stare.
The procedure consists in most cases in spraying the affected plants with poisonous solutions or emulsions, or in (lusting them with fungicidal or insecticidal powders, or applying the fumes of lethal gases.
They first invented and named the alembic for the purposes of distillation, analyzed the substances of the three kingdoms of nature, tried the distinction and affinities of alkalis and acids, and converted the poisonous minerals into soft and salutary remedies.
Carmen glanced up at Alex, who was giving her a poisonous look.
The better plan is to discard at once all fungi which have not been gathered from open pastures; by this act alone more than nine-tenths of worthless and poisonous species will be excluded.
She backed away from him, wiping her mouth as she threw him a poisonous look.
The dust emitted from mining the ore was poisonous in its raw state.
In fact, it kills poisonous snakes.
You can tell the poisonous ones because they lift their heads out of the water while they swim.
A species of Acarus is recorded as infesting a store of powdered strychnine and feeding on that drug, so poisonous to larger organisms. Reference to literature (40).
Poison is not poisonous after all, nor are any wounds fatal.
So various are the conditions of selfregulation in various animals, both in respect of their peculiar and several modes of assimilating different foods, and of protecting themselves against particular dangers from without, that, as we might have expected, the bloods taken from different species, or even perhaps from different individuals, are found to be so divergent that the healthy serum of one species may be, and often is, poisonous to another; not so much in respect of adventitious substances, as because the phases of physiological change in different species do not harmonize; each by its peculiar needs has been modified until, in their several conditions of life, they vary so much about the mean as to have become almost if not quite alien one to another.
The first named, which is poisonous in its native state, is the cassava of Spanish America.
It has a characteristic smell, and a biting taste; it is poisonous, and acts as a powerful antiseptic. It dissolves in water, 15 parts of water dissolving about one part of phenol at 16-17° C., but it is miscible in all proportions at about 70° C.; it is volatile in steam, and is readily soluble in alcohol, ether, benzene, carbon bisulphide, chloroform and glacial acetic acid.
This name is twice translated "adder," but as nothing is told of it beyond its poisonous character and the intractability of its disposition, it is impossible accurately to determine the species.
Orifice of the grape-shaped (supposed poisonous) gland.
There is no actual proof that this spider is more poisonous than others, but it is a significant fact that its species, inhabiting countries as widely separated as Chile, Madagascar, Australia, New Zealand and South Europe are held in great fear by the indigenous population, and many stories are current of serious or fatal results following their bites.
Deficiency of nutritive salts, especially nitrates and phosphates; the presence of poisonous salts of iron, copper, &c., or (in the soil about the roots of trees in towns) of coal-gas and so forth.
Care and intelligence are especially needful with certain insecticides such as poisonous gases, or the operators may suffer.
As regards reptiles, there are at least seven poisonous snakes - two cobras, two puff-adders and three vipers.
The snake, however, to which the word "asp" has been most commonly applied is undoubtedly the haje of Egypt, the spy-slange or spitting snake of the Boers (Naja haje), one of the very poisonous Elarinae, from 3 to 4 ft.
For insects provided with a biting mouth, which take nourishment from the whole leaf, shoot or fruit, the poisonous washes used are chiefly arsenical.
On the other hand it has been specially recorded of two of the species of spider-destroyers that they have great dislike and apparent fear of these little poisonous Hymenoptera.
A poisonous but beautiful green snake is often mentioned by travellers.
Amongst these may be mentioned the neutralizing of the toxins in cases of diphtheria, tetanus and poisonous snake-bite; " serum therapeutics "; and treatment by " vaccines."
It is invariably the result of some cause acting generally, such as renal disease, valvular defect of the heart, or an impoverished state of the blood; while a mere oedema is usually dependent upon some local obstruction to the return of blood or lymph, or of both, the presence of parasites within the tissue, such as the filaria sanguinis hominis or trichina spiralis, or the poisonous bites of insects.
Thus the digestive function, in its largest sense, is now seen to consist, not only in preparation and supply, but in no small measure also of protective and antidotal conversions of the matters submitted to it; coincidently with agents of digestion proper are found in the circuit of normal digestion "anti-substances" which neutralize or convert peptones in their poisonous phases; an autochthonous ferment, such as rennet for instance, calling forth an anti-rennet, and so on.
The free acid, which is obtained by treating the salts with acids, is an oily liquid smelling like prussic acid; it is very explosive, and the vapour is poisonous to about the same degree as that of prussic acid.
The now well-known fact that small doses of poisonous substances may act as stimuli to living protoplasm, and that respiratory activity and growth may be accelerated by chloroform, ether and even powerful mineral poisons, such as mercuric chloride, in minimal doses, offers some explanation of these phenomena of hypertrophy, wound fever, and other responses to the presence of irritating agents.
Nature has provided several species of animals, birds and reptiles, to feed upon these insects, and various poisonous and suffocating compounds are used to destroy them, but with no great degree of success.
Both these and many other plants such as gift-blaar and drouk-gras are poisonous to cattle.
These poisonous plants are found chiefly in the banken and low veld.
"In the barn?" she asked innocently, and glanced up in time to see the poisonous look Josh was shooting at Alex.
That the local authority, before granting a licence, " shall take into consideration whether, in the neighbourhood, the reasonable requirements of the public are satisfied with regard to the purchase of poisonous substances, and also any objections they may receive from the chief officer of police, or from any existing vendors of the substances to which the application relates."
If formed, as it probably is, it is immediately changed into some more complex combination, and so rendered incapable of exerting its poisonous action.
He found that the development of a gall is due to a temporary modification of the part affected, not, as is generally thought, in consequence of the deposition of an egg by the insect, but of the injection of a poisonous substance which has the effect of stimulating the protoplasm to develop a gall instead of normal structure.
Magnesium sulphate may be given by the mouth, but is poisonous if injected intravenously.
==Toxicology== In a few minutes after the introduction of a poisonous dose of aconite, marked symptoms supervene.
In Bosnia the persistent attempts of the Magyar princes to root out the stubborn, crazy and poisonous sect of the Bogomils had alienated the originally amicable Bosnians, and in 1353 Louis was compelled to buy the friendship of their Bar Tvrtko by acknowledging him as king of Bosnia.
Any poisonous substance that is not included in the schedules can be sold by anyone, as, for instance, red lead, sulphate of copper, &c. The duty of the Pharmaceutical Society is a purely legal one, and relates only to the schedules of poisons framed by the government to protect the public by rendering it a difficult matter to obtain the poisons most frequently used for criminal purposes.
The yellowing and subsequent casting of leaves, for instance, is a very general symptom of disease in plants, and may be induced by drought, extremes of temperature, insufficient or excessive illumination, excess of water at the roots, the action of parasitic Fungi, insects, worms, &c., or of poisonous gases, and so forth; and extreme caution is necessary in.
Snakes are not numerous, and it is said that none is poisonous or vicious.
They are easily propagated by divisions of the root or by seeds; great care should be taken not to leave pieces of the root about owing to its very poisonous character.
The ophidians are also numerous, especially in the wooded lowlands valleys, and the poisonous species, though less numerous than others, include some of the most dangerous known - the rattlesnake surucucd (Lachesis rhombeatus), and jarardca (Bothrops).
Scorpions are common, but are considered less poisonous than some European species.
Mandioca was cultivated by the natives before the discovery of America, and the wide area over which it has been distributed warrants the conclusion that the discovery of its value as a food and the means of separating its poisonous properties must have occurred at a very remote period.
The asphodel was also supposed to be a remedy for poisonous snake-bites and a specific against sorcery; it was fatal to mice, but preserved pigs from disease.
In mining operations explosives are used on a large scale and the powder gases contain large quantities of the very poisonous gas, carbon monoxide, a small percentage of which may cause death, and even a minute percentage of which in the air will seriously affect the health.
For example, carbon dioxide occurs in some mines, and hydrogen sulphide, which is a poisonous gas, in others.
From the corner of her eye she saw Katie give Alex a poisonous look, but Carmen walked out without looking in his direction.
4 sqq.) for whom Elisha "healed" its poisonous waters.
Now as our own bodies thus manipulate substances poisonous and antidotal, if in every hour of health we are averting selfintoxication, so likewise are we concerned with the various intruding organisms, whose processes of digestion are as dangerous as our own; if these destructive agents, which no doubt are incessantly gaining admission to our bodies, do not meet within us each its appropriate compensatory defensive agent, dissolution will begin.