ANALYSIS OF CONTINENTAL JOURNALS. 59 
enormous quantity of spores. Finally, a very fine cup was 
formed on the external border of one of the ears. 
4 
Such was the condition of the animal on the 1st of August, 
when it was decided to put it under treatment; this time it 
was an ointment of the nitrate of mercury (nitrate 1 part, 
lard 50 parts) to which we had recourse. 
It is necessary, then, to add the rabbit to the list of animals 
capable of contracting the favus, and the preceding triple 
observation proves that in it the disease may become very 
serious, for two of the three patients died ; one very probably, 
it is true, from the effects of a too energetic mercurial treat¬ 
ment, but the other as certainly from the disease alone. 
The character of the affection, as we have endeavoured to 
describe it, is undoubtedly sufficient to authorise its being 
completely identified with the favus of man and the other 
animals; nevertheless it was not deemed useless to prove 
this experimentally. This I have done in transferring the 
disease from the rabbit to the dog. 
3. Transmission of Tinea from the Rabbit to the Log. 
On June 14th, 1869, having a young dog at my disposal, 
aged from 16 to 18 days, I resolved to transmit the Tinea of 
the rabbit to it. Consequently, I took from the skin of 
rabbit No. 1, which had died the previous evening, a favus 
crust; this I broke up in some drops of distilled water, and 
spread the mixture so prepared, drop by drop, on the previ¬ 
ously moistened head of the puppy, gently rubbing the epi¬ 
dermis at the same time with the pulp of my finger to make 
the spores penetrate beneath the hairs and insure their 
coming into contact with the skin. After this operation the 
creature was kept in the arms a few minutes to allow the part 
time to dry, it was then put beside its mother. It was ex¬ 
amined every day, in order to note the result of this inocula¬ 
tion, or rather sowing. 
On June 18th nothing was yet observed of the germina¬ 
tion of the cryptogam. The sown surface was sprinkled with 
some drops of distilled water, and gentle friction, sufficient 
to damp the skin thoroughly but not disturb the seeds, was 
employed. On the 26th no trace of favus could be found on 
the puppy’s head :but on the 27th, on examining it very 
attentively, three tiny, very characteristic cups, quite con¬ 
cealed by the hair, were discovered. They were arranged in 
a straight line drawn from before backwards to the neck. 
The first was situated in the middle of the line that joins 
the two ears, the second a little behind this, and the third 
at the point where the head and neck are articulated. These 
