Report to the Association for the Advancement of Medicine by Research on the relation of micro-organisms to tuberculosis / by W. Watson Cheyne.

  • Cheyne, William Watson, Sir, 1852-1932.
Date:
[1883]
Catalogue details

Licence: Public Domain Mark

Credit: Report to the Association for the Advancement of Medicine by Research on the relation of micro-organisms to tuberculosis / by W. Watson Cheyne. Source: Wellcome Collection.

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    juice of the muscle of another tuberculous rabbit. This was killed after the lapse of about two and a-half months. The submaxil- lary glands were enlarged and caseous, the lungs full of tubercles, also the kidneys, and a few nodules and ulcers in the small intestine. Spleen free. 2. A rabbit which had been vaccinated at the root of the ear with lymph from a tuberculous calf. The lungs, kidneys, and bronchial^ glands were full of tubercle. There was very slight alteration at the point of infection, but the glands at the angle of the jaw were enlarged. He says that this is so in all cases. The vaccination is done in the same way as in the case of children. 3. A rabbit into which had been injected six months pre- ' viously three drops of blood from a tuberculous pig. Here there was no recent tubercle, only one or two nodules which may or may not have been tuberculous ; nothing to show that the experiment had been successful. However he told me that two other rabbits which had been inoculated with the same blood at the same time had died some time previously with extensive tuberculosis. 4 and 5. Two rabbits inoculated mth tuberculous material. Extensive tuberculosis of all the organs. I called on Dr. SchuUer, in Berlin, on August 5th, and had a long conversation with him on the subject of his experiments. He admits that Koch's tubercle bacilli can cause tuberculosis. This he considers absolutely proved by Koch. But he thmks that other things may also be the carriers of contagion, and he still holds that it may have been transmitted by the micrococci described by him. He did not examine human tuberculous organs for micro-organisms, but in animals he found bodies which, m his opinion, were often without doubt micrococci. He did not have any specimens at hand, but he showed me several of his original drawings, which were of course siinilar to the figures in his book. In reference to his views it is important to note that his cultivations did not always produce tuberculosis, that they did not always kill so rapidly as tuberculous material, and that phthisical sputum was more virulent. I cannot sufficiently acknowledge Dr. Koch's kindness, nor