264 
TRANSLATION. 
live in the body of animals. We knew the carbuncular bacteridie 
and the septic vibrio, agents of contagion, of disease and death, 
not because they give rise to chemical poisons, but because ani¬ 
mal economy can be their center of cultivation. We have now a 
third kind, also able to multiply itself in the living body, and 
to give rise to a pathological state different, we have seen, from 
the morbid manifestations which follow the inoculations of the 
carbuncular bacteridie or the septic vibrio. It is proof that the 
pus formed by the organism is related to the specificness of its 
structure. The quantity of pus, for instance, produced by the bac 
teridie and the septic vibrio, all the points of inoculation or any 
where else, is so little that it is often overlooked. 
Does our new microbe when inoculated, remain confined under 
the skin at the point of inoculation ? 
Can it like the bacteridie or the septic vibrio, spread itself in 
the whole body when once under the skin ? Experiments answer 
affirmatively. This microbe can propagate into muscle, penetrate 
into the blood, in the lungs, in the liver, and give rise in these or¬ 
gans to the formation of purulent collections, metastatic absces¬ 
ses, in one word to purulent infections and death. This invasion 
of the whole body is, however, more difficult than by the carbun¬ 
cular bacteridie or by the septic vibrio. While inoculation of the 
smallest quantities of these last organisms will bring on, so to 
speak, sure death ; that of our microbe in equivalent proportions, 
will only produce abcesses which get well, either because they ul¬ 
cerate of themselves or because the pus is absorbed, and the micro - 
be disappears, defeated by what I called a moment ago, the life, the 
vital resistance, the natura medicatrix. However, if one in¬ 
creases by the number of the inoculations the number of the abs - 
cesseses, it frequently happens that the cure of those cannot take 
place, and it is then that the microbe penetrates every where, and 
that the muscles and the liver are impregnated with them. 
We have said that the new organism, first warmed up to a 
temperature of 100 to 110 degrees, and entirely deprived of life* 
though keeping its form and size, gives rise, when inoculated 
under the skin and like other inert solid bodies, to abscesses 
formed by an ordorless, pure pus which is free from microscopic 
