TUBERCULOSIS. 
397 
Johne also believed that he knew it when he admitted 
that the flesh is not dangerous “ as long as the animals killed 
for the butcher when attacked with tuberculosis do not pre¬ 
sent the characters of metastatic tuberculosis, that is to say, 
of generalized tuberculosis.” 
M. Lydtin, in indicating to us the characters which the 
flesh and the viscera of a tuberculous beast ought to present 
in order to be passed for consumption, states explicitly what 
are the conditions in which the flesh becomes injurious : it is 
injurious when the tuberculous focus has undergone soften¬ 
ing, when the lymphatic glands are affected, or when the le¬ 
sions have extended to a certain portion of the body. 
We, also, thought that we could formulate these condi¬ 
tions when we said to the Sanitary Congress of Paris, in 1885, 
that “ the flesh even of good appearance is dangerous when¬ 
ever the tuberculous lesions of an organ or of a serous mem¬ 
brane have the tendency to become generalized, that is to 
say, have passed the afferent lymphatic glands of these or¬ 
gans.” 
The French legislator has equally considered that he 
knew exactly these conditions, since he prescribes the exclu¬ 
sion of the flesh from consumption “ if the lesions are gener¬ 
alized, that is to say, not confined exclusively to the visceral 
organs and their lymphatic glands, and if the lesions, although 
localized, have invaded the greater part of an organ or are 
manifested by an eruption on the walls of the chest or of the 
abdominal cavity.” 
There are so many hazardous pretensions. It is easy to 
prove that, in informing oneself regarding the propagation of 
the tuberculous virus in the organism. 
Undeniably the muscles can be dangerous only if Koch’s 
bacilli circulate in their substance with the blood. But they 
are found in the blood-vessels at the outset of infection, as 
well as in the course of an advanced infection. 
The bacilli do not necessarily travel, from their point of 
entrance towards the organs where they fix themselves, only 
by way of the lymphatics. Indeed their passage in the lymph 
is not indispensable to their ulterior fixation. When intro- 
