ANALYSIS OB 5 CONTINENTAL JOURNALS. 49 
poisonous properties. The difficulty of isolating the cor¬ 
puscles and cells from the plasma is much greater than might 
at first sight be imagined. It is impossible to effect it satis¬ 
factorily by merely straining the fluid, for in this operation 
it may always be objected that a part of the plasma still 
remains adherent to the cells, and accounts for their active 
properties. M. Chauveau advances various reasons against 
the employment of dialysis, and, in order to obtain the cells 
as pure as possible, proceeds in the following manner:—The 
purulent fluid (and he prefers the fluid obtained from the 
pulmonary abscesses of horses affected with glanders, as 
possessing an extraordinary degree of activity and virulence) 
is first washed with ten times its bulk of water, and, after 
standing for two hours, the superjacent fluid, containing cells 
and molecules free from coarser fragments, is strained through 
filtering paper. The material left in the filter is washed over 
and over again with many hundred times its bulk of water, 
and allowed on each occasion to precipitate to the bottom of 
the vessel. By these means, which occupy nearly forty hours, 
he considers he has withdrawn or washed away all the ad¬ 
herent plasma. But if a small portion of the mass of the 
corpuscles, leucocytes, mucous globules, proliferating cells, 
columnar epithelium, and granulations, all more or less 
swollen with water, be introduced with a lancet into the 
cheek of a perfectly healthy horse or ass, the initial symp¬ 
toms speedily become apparent, and demonstrate in the 
clearest manner that they constitute the true poisonous agents. 
The means adopted by M. Chauveau to discover which of the 
morphological elements are to be regarded as the active agents 
we reserve for consideration. 
Analysis of Continental Journals. 
By G. Fleming, M.R.C.V.S., Royal Engineers. 
STUDY ON TINEA FAVOSA IN THE DOMESTICATED 
ANIMALS. 
By M. F. Saint-Cyr, Professor at the Lyons Veterinary School. 
[Continuedfrom vol. xliv, p. 912.) 
Third Fact. — Observation.—Transmission of the Favus of Animals 
to Man : Unusual Form the Eruption may assume in this 
case. 
I have said, in the course of this memoir, that the favus of 
animals may be transmitted to the human species, and I 
xlv. 4 
