352 
DR. POINCARE. 
culous disease, it will be interesting to follow the various condi¬ 
tions through which her little ones will pass. 
Second, slices of muscles of the thigh oj a tuberculous sow 
were placed in a chafing-dish and heated by gas. They were 
cooked rare and were then pressed, and the fluid obtained inocu¬ 
lated to two rabbits ; two others receiving non-heated juice of the 
same muscles. These last died in 120 days, almost at the same 
time, with caseous pneumonia, and tubercles in all the tissues. 
Of the two rabbits which received the heated juice, one was 
killed the 56th day after inoculation, and had local and gang¬ 
lionic lesions, with grey granulations in the lungs, omentum and 
spleen. The other is yet alive, but in a declining state, and 
must soon die. 
These facts are significant. They evidently prove the danger 
of both raw meats and of the juice of muscles scarcely heated, 
such as is given to children and weak persons. The infection 
takes place as easily by ingestion as by inoculation. It is indeed 
more correct to say that the disease inoculated through the diges¬ 
tive apparatus acts more rapidly, as all the intestinal ganglions 
may be affected together, which implies that the points of inocu¬ 
lation are more numerous than in the simple puncture of the skin. 
It is generally the meat of beeves which is used to prepare 
meat juices. Many of these animals are tuberculous, and when 
one lung contains grey granulations, one may conclude that the 
infection is complete. Still, in the slaughter-houses, animals 
whose lungs are entirely diseased are seldom refused. I have 
often seen lungs containing as much as 35, even 40 kilogs. of tu¬ 
berculous matter, taken from a cow whose meat had been allowed 
to be sold.— Gazette Medicate. 
COMPARATIVE PATHOLOGY. 
UPON THE PATHOGENY AND PROPHYLAXY OF PLEURO-PNEUMONIA 
IN CATTLE. 
By Dr. Poincare. 
Our knowledge of the true nature of contagious pleuro-pneu- 
monia is not yet complete, as the disease resembles neither the 
true inflammatory pneumonia, nor those diffuse and passive inflam- 
