TRANSLATIONS FROM FOREIGN PAPERS. 
367 
lias been deposited. When the eruption is generalized it is light, 
and the pustules are remarkably smaller. Such are the results 
obtained by M. Chauveau and from the far less numerous but 
not less satisfactory experiments 1 have made. 
To these I would add a fourth conclusion. The repeated 
apparition of an angina does not implicate at all that there is a 
reuidive of gourme. 
r 
I have already said that M. Chauveau has employed several 
other modes of experiments, whose results I must indicate briefly, 
as they have considerable importance to elucidate the problem 
now before us. In his attempts of vaccinal infection by the 
respiratory passages he has failed. “ In making horses whose 
trachea was open by a small trocar, inspire dust of dry vaccine,” 
he sometimes obtained pustules on the lips and on the nose. 
“ But,” he says, “ the positive results were rare, though the exper¬ 
iments were numerous.” 
In giving in beverages a notable quantity of vaccinal matter, 
he has obtained in two young horses the two finest generalized 
eruptions he ever saw, and besides these two has had numerous 
failures. 
In connection with this series of experiments of inoculation 
by the digestive apparatus, I may be allowed to ask the eminent 
profession a question which, I desire to state, has no critical object 
in view. Is it sure that, in the special cases a direct inoculation, 
in consequence of the contact of the liquid with the lips and the 
mucous of the nose, has not followed ? When arrived in the stom¬ 
ach, is not the virus destroyed by the gastric juice whose function 
is precisely to dissolve animal substances? In other words, is it by 
internal absorption that the virus penetrates the organism? To 
refute this objection it would be necessary to obtain a positive re¬ 
sult in injecting in the oesophagus the virulent liquid, thus avoiding 
its contact with the lips and the pituitary membrane. Idas some 
one followed this mode ? I have injected for several days a bull 
and a cow with the liquid of pleuro-pneumonia, but have not 
produced the disease. This I know is not sufficient to infirm the 
law of transmission of a virulent disease by intestinal absorption. 
Still, as long as positive facts are wanted, this law will not be 
