This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from ... Show synopsis This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1863 Excerpt: ...manner, it was found that there was a total annihilation of all the properties of the nervous system; the reflex movements were found to be altogether lost; and in animals dead but for a minute, and still warm, the nerves were as inert as though life had been extinguished for a long time. The blood was found constantly black, coagulated with difficulty, and had entirely lost the property of becoming red on exposure to atmospheric air. It is asserted, from these facts, that the action of the woorara is very similar to that of the poison of the viper; and that the analogy is still stronger from the circumstance that, like the latter, it may be introduced into the stomach with impunity. Experiments were then instituted with reference to this last point. In the first place, it was found that when woorara was mixed with gastric juice, and the solution introduced into the circulation of animals, death uniformly followed. It is hence concluded that it is not from any alteration produced by the gastric juice that the poison is innocuous when introduced into the stomach. The other digestive fluids--the saliva, bile, and pancreatic juice--were likewise without effect upon the poisonous properties of the woorara. The inertness of the poison when ingested into the stomach was found to depend upon the fact that the gastric mucous membrane does not allow the toxic principle of the woorara to pass through it. The following experiment is adduced as tending to establish this view: --The fresh gastric mucous membrane of an animal, (dog or rabbit, ) recently killed, was adapted to an endosmometer in such a manner that the mucous surface was on the outside. In the instrument was then placed a solution of sugar in water, and the whole was plunged into an aqueous solution of woora.