Ophidians, zoological arrangement of the different genera, including varieties known in North and South America, the East Indies, South Africa, and AustraliaTheir poisons, and all that is known of their natureTheir galls, as antidotes to the snake-venom .. . ch is fully developed in astate of nature at the period in which the reptile is most con-stantly in motion, and which is at its minimum. Avhen it is ina state of torpidity, or of little exercise, as in captivity. This will also explain why Dr. Weir Mitchells and othersobservations induce them to adopt the belief that the Crotalusdoes not e
Ophidians, zoological arrangement of the different genera, including varieties known in North and South America, the East Indies, South Africa, and AustraliaTheir poisons, and all that is known of their natureTheir galls, as antidotes to the snake-venom .. . ch is fully developed in astate of nature at the period in which the reptile is most con-stantly in motion, and which is at its minimum. Avhen it is ina state of torpidity, or of little exercise, as in captivity. This will also explain why Dr. Weir Mitchells and othersobservations induce them to adopt the belief that the Crotalusdoes not emit a strong smell of musk; while, in a state ofnature, this odor is so strong as to be exceedingly offensive. SNAKE POISONS, THEFR NATURE, ANALYSES OF THEM, AND SOME INTERESTINGFACTS DERIVED FROM THE STUDY OF THEIR ACTION. Figure 1 represents the microscopical appearance of humanblood: a a a is a front view of the globules, and b b b shows an edgewise view of them. The^^^- ^- white background between the globules represents the plasma orliquid or vehicle through whichthe blood-globules are carried inthe circulation. The plasma is composed of water,containing in solution a great num-ber of different substances. Thepresence of albumen, fibrin, various. SNAKE POISONS. 117 fatty substances, some of which contain sulphur and phos-phorus, a great number of salts, such as the chlorides ofpotassium and sodium, chloro-hydrate of ammonia, the sul-phates of soda and potassa, the phosphates of soda, lime, andmagnesia, the carbonates of soda, lime, and magnesia, and ofalkaline salts, formed by fatty acids and lactic acid, has beendetected in blood. This plasma contains also several gasesin solution : oxygen, carbonic acid, and nitrogen, which arederived from the action of the air in the lungs. It has apeculiar mawkish taste, characteristic in some animals, andalways exerts a well-marked alkaline reaction, which appearsto be an essential part of its nature, for animal life ceasesAvhen, by d
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Keywords: ., bookcentury1800, bookdecade1870, bookidophidia, booksubjectsnakes
