Tentamen inauguralis de vaccinae verae testimoniis / [John William Calvert].

  • Calvert, John William
Date:
1820
Catalogue details

Licence: Public Domain Mark

Credit: Tentamen inauguralis de vaccinae verae testimoniis / [John William Calvert]. Source: Wellcome Collection.

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    u however, I had the good fortune to meet with one horse from whose heels I procured thematter of grease “ in a more limpid state than that obtained from any of u the others, at about the fourteenth day of the disease “ and a week from the first appearance of the discharge. “ The matter from this horse produced the disease in il Experiments IV. and VI. and also in three cows whose “ cases I have not particularised, as the appearances “ were similar to Experiment IV. and as no further trials “ were made from them.” “ Experiment IV. “ Some of the thin limpid matter that issued from a “ sore in the heel of a horse affected with the grease, “ was inserted, by a perfectly clean lancet, immediately “ after its being procured, into the teat of a cow. On “ the fifth day the wound appeared rather elevated, and a faintish redness surrounded it.^ In a few days a ve- sicle formed, containing a large quantity of watery “ fluid, and of a purple tinge. Though the inoculated “ part was tumified and painful, the animal did not seem u otherwise diseased.” “ Experiment V. “ A quantity of the limpid matter, obtained from the “ teat of this cow, was inserted into the arm of a child. “ On the third and fourth days the incision appeared “ without any evident signs of having received the in- “ fection; but on the sixth day a considerable degred of redness surrounded the wound, and a vesicle wa£ F
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