Vivisection in America : I. How it is taught II. How it is practised / by Frances Power Cobbe and Benjamin Bryan.
- Frances Power Cobbe
- Date:
- 1890
Licence: Public Domain Mark
Credit: Vivisection in America : I. How it is taught II. How it is practised / by Frances Power Cobbe and Benjamin Bryan. Source: Wellcome Collection.
Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.
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![Luchsinger, of Zurich, and Miss Kendall, of Boston, found that after irritation of the sciatic or bronchial nerves in the dog or cat, an increased secretion of sweat took place, and that it ensued after ligature of the aorta, and during the first fifteen minutes after amputation of an extremity,* &c. The authors go on to state :— We made some experiments, of which the following are examples :— Experiment I. Cat placed on Czermak's holder, sciatic laid bare and irritated with Du Bois' apparatus ; an exag- gerated secretion of sweat followed. Experiment II. Cat: Posterior extremity amputated with the sciatic attached ; when an electric current was applied to the nerve the secretion of sweat commenced. Experiment III. Cat placed in holder and etherised, spinal cord divided in the dorsal region, and sciatic divided on one side. On inducing asphyxia [?when the effect of the ether had disappeared] sweating took place in all the extremities excepting that which had suffered section of the sciatic. Experiment IV. Cat: spinal cord divided between the 8th and 9th dorsal vertebra. On the next day the sciatic was divided, and a few drops of a solution of muscarin injected subcutaneously at 9 a.m. The muscarin used was obtained from Merck's laboratory, and given in the shape of a sulphate. 9.3 a.m., salivation and sweating of all the feet, pupil contracted; 9.7 a.m., defaecation and labored breathing, atropin subcutaneously injected; 9.12 a.m., sweating checked in all the extremities; 9.16 a.m., injection of atropin repeated; 9.28 a.m., again repeated; 10.4 a.m., sweating and salivation nearly completely checked. Experiment V. Cat: spinal cord divided between the 8th and 9th dorsal vertebrae. On the third day after the * Perspiration ensues upon pain; was not this sweating so caused ?](https://iiif.wellcomecollection.org/image/b21225722_0044.jp2/full/800%2C/0/default.jpg)
