ANALYSIS OF CONTINENTAL JOURNALS. 
195 
also that, in certain preparations, we have often been obliged 
to look for these cryptogamic elements for several hours before 
finding them in sufficient quantity to dispel the idea of an 
optical illusion. But we have so frequently repeated these 
searches, and exercised them with so much care, that it was 
impossible to entertain the slightest doubt as to their signifi¬ 
cation. 
Otherwise, this disease was not serious in its consequences. 
Submitted, from the 19 th of July, to the local treatment indi¬ 
cated above, M. Maherault was completely cured on the 1st 
of August. 
2. Some days before M. Maherault—on the 5th of July— 
another of our students, M. Guizol, also in the third year of 
his studies, showed me a small red patch, irregularly circular 
and dry, seated on the right arm, a little above the elbow, 
and only offering on its surface some epithelial scales, which 
were easily removed in the form of little silvery pellicles ; 
this he had noticed for three days. Not yet perceiving in 
the lesion any very distinct characters, I advised him to wait 
for a day or two before resorting to treatment. 
On the Qth he showed it to me again ; it was perceptibly 
larger, being about the size of a franc; in shape it was a little 
ellipsoid; it was not painful, but very pruriginous. Its 
centre was slightly pallid, while its circumference looked very 
red and irritated. In addition, it was bordered by a non- 
continuous circle of very small, transparent vesicles, contain¬ 
ing a limpid serosity. On the surface of the lesion there 
were five or six sharply-defined points, the size of a pin’s 
head, slightly buried, drier than the surrounding parts, of a 
yellow colour, and showing in their centre a depression com¬ 
parable to that which might be made by the point of a pin in 
a firm, but not hard crust. One of these yellow points, re¬ 
moved by a dissection needle, looked flat, and even a little 
depressed on its free surface; in shape it was round, and its 
adherent face was somewhat conical. Squeezed on the glass 
slide and damped by a drop of distilled water, in order to be 
examined in the microscope, this little yellow body distinctly 
exhibited a very large number of spores, sporophorous tubes, 
and filaments of mycelium, exactly like those of the Achorion 
Schonleinii , which I have had occasion to observe for so many 
years. 
There was, then, no reason to hesitate; it vm&fams with 
with which the student was affected, and the disease was 
manifested in him, as in M. Maherault and myself, as if it 
were Herpes circinnatus. 
I prescribed the sublimate-liniment treatment, and the same 
