Prize thesis : an experimental inquiry, concerning the presence of alcohol in the ventricles of the brain, after poisoning by that liquid : together with experiments, illustrative of the physiological action of alcohol : for which, a gold medal was awarded by the Medical faculty of the University of Edinburgh / by John Percy.

  • Percy, John, 1817-1889.
Date:
1839
Catalogue details

Licence: Public Domain Mark

Credit: Prize thesis : an experimental inquiry, concerning the presence of alcohol in the ventricles of the brain, after poisoning by that liquid : together with experiments, illustrative of the physiological action of alcohol : for which, a gold medal was awarded by the Medical faculty of the University of Edinburgh / by John Percy. Source: Wellcome Collection.

Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.

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    In order to make the application of the cam- phor test, a drop of the supernatant stratum is to be removed by means of the pipette, and depo- sited on a small fragment of camphor placed in the field of a simple microscope. If the liquid be alcohol, it will immediately be traversed in all directions by currents proceeding from the cam- phor, which will, in this case, be quickly dis- solved ; but the alcohol will rapidly evaporate, and leave a well-defined patch of camphor, con- sisting of little masses mixed with plumose cris- tallization. By the above methods of procedure, a single drop of alcohol will be found sufficient for many experiments. EXPERIMENT I. At 40 minutes after 6 a.m. precisely, I injected ^vi. of alcohol, sp. gr. 850*^, through an elastic catheter, into the stomach of a large full-grown mongrel dog. Entire loss of voluntary power almost immediately succeeded; the animal fell prostrate on one side, and never afterwards moved a limb. 6^- -IS™ Evacuation of feces took place, the