54 
ANALYSIS OF CONTINENTAL JOURNALS. 
that of a flattened tubercle. On their surface the hairs were 
bristly, dull and dead-looking, while elsewhere they were 
glossy and lustrous. 
It is needless to say that the microscope was not neglected 
in this case, nor yet in those preceding it, and that again we 
found with the greatest ease, the elements of the Achorion. 
It may be added that, notwithstanding the advanced stage to 
which its cutaneous affection had arrived, this little creature 
appeared to enjoy excellent health, and that we kept it alive 
under observation for several days. 
Finally, in the last days of August, our director, M. Rodet, 
obligingly forwarded me another of these rodents, caught in 
a trap in his own apartments, and which was, like the others, 
affected in a very high degree. 
Here, then, were nine mice suffering from Tinea , caught or 
killed at the school in the space of a few months. No doubt 
these rodents had found the germs of the disease in our 
hospital, while frequenting the place where I kept my ex¬ 
perimental animals, and where I had lodged at one time 
seven puppies affected with the malady. But what is worthy 
of remark is that the cats belonging to our establishment, 
which lived at large in the courtyards and lofts, and carried 
on a very active warfare with the mice, did not appear to 
contract the affection. I say did not appear, for they were so 
savage that it was not easy to catch and examine them. 
Otherwise their freedom from the disease is well accounted 
for by their being all either adults or old, and, as I have estab¬ 
lished, these are much more refractory to the contagion 
arising from the transport of the spores of the Achorion than 
young animals. 
This difference in aptitude to contract Tinea according to 
the age finds a new confirmation in the following observation, 
one of the most interesting and complete that I have made 
since I commenced to occupy myself with this subject, which 
is so worthy of attention. 
2. Tinea in the Rabbit. 
On June 11th Dr. Mourraud, of Lyon-Vaise, who had read 
in the Lyon Medical a summary of my memoir on the 
“ Tinea in Animals, v sent three young rabbits in which he 
had recognised the disease, and which he generously gave me 
for the purpose of study. At the same time he supplied the 
following information : 
These rabbits were about two months and a half old, and 
formed part of a litter of seven; they were well kept. It 
was not known where they got the disease, and among the 
