193 
ANALYSIS OF CONTINENTAL JOURNALS. 
August 4th.—The cure is nearly complete. M. Bourotte 
having received his diploma at the last examinations, left the 
College; but I advised him to continue the same treatment 
for some days. 
Such are the new facts that I have acquired during this 
year on Tinea in animals, and its transmissibility to the human 
species. They appear to be of great importance, as they in 
fact prove that the parasitic maladies of animals may be 
transmitted to mankind with much facility; they throw a 
new light not only on the history of favus , but also on that 
of Herpes circinnatus, the etiology of which is so often obscure 
and doubtful; and they open, if I am not deceived, a new 
field for the investigations of science, and seem to me, for all 
these reasons, to be worthy of the most serious attention of 
medical and scientific men. 
I have said that the favus of animals can be readily trans¬ 
mitted to man, and the three facts cited in detail evidently 
prove this ; I ought to add, however, that this transmission 
is not equally easy in all individuals, even for those placed in 
apparently exactly similar conditions. Thus, all our students 
were certainly as much exposed to receive it as M. M. Bourotte 
and Guizol (I omit mention of M. Maherault, who was 
placed in exceptionably favorable conditions for contagion); 
all should have been equally exposed to receive on their 
bodies the favus dust derived from the mice which haunted 
the establishment, and yet up to this time only two out of 
168 students have been infected. 
Besides this, it is to be remembered that I myself contracted 
an Ac/iorial (if I may employ such a word) herpes circinnatus , 
through touching young dogs to which I had experimentally 
given the disease. Well, one of our students, M. Meunier, 
now diplomated, was specially charged with looking after these 
animals ; he examined them every day, handled them for 
hours together, followed, with much interest and zeal, for me 
and with me these experiments, and was certainly much 
more exposed to the contagion than I was; and yet he never 
experienced the slightest accident in consequence of this 
contact, although, as I frequently observed, he never thought 
of taking any great precautions to preserve himself. 
Therefore, in order that the parasitic maladies may be 
communicated, it is not always sufficient that the spores only 
are transported from the diseased to the healthy individual; 
it is also necessary that the germs should find in the creature 
who receives this dust a soil convenient and propitious to its 
germination. 
What are, then, the individual conditions favorable to the 
