240 
j. m’fadyean. 
and a further series of 14 experiments carried out by myself 
at the request of Professor Brown. These later experiments 
were made with the juice from the muscular tissue of tuber¬ 
culous carcases condemned as unfit food at the Edinburgh 
Abattoir, 1 and the result in every case was negative. When 
these two series are added we obtain a total of 84 experi¬ 
ments, of which 70 had negative and 14 positive results. 
But here again a scrutiny of the experiments brings out a 
result much less unfavorable to the muscle-juice than is at 
first apparant. 
The 2 experiments of Peuch must be put aside, for the 
cow from which the juice was obtained in the first experi¬ 
ment was obviously the subject of a general tuberculosis, 
since the lesions are stated to have involved the lung, pleura, 
peritoneum, bronchial and intestinal mucous membrane, 
mesenteric, bronchial and submaxillary glands, and even the 
bones; and in the second experiment the juice was obtained 
from the muscles of a fowl dead from generalized tubercu¬ 
losis. It may be observed that there is thus a double objec¬ 
tion to the validity of the second experiment; for there is 
strong reason to suspect that avian and mammalian tubercu¬ 
losis are distinct diseases. As was remarked in speaking of 
the experiments with blood, it is useless to cite experiments 
made with carcases in which the lesions indicate a generali¬ 
zation of the virus, for no difference of opinion exists as to 
how such carcases ought to be dealt with. 
The same objection holds good with reference to Galtier’s 
experiments, for while it is not perfectly clear from his report 
that the animals furnishing the muscle juice were all the sub¬ 
jects of a general tuberculosis in the strict sense of that term, 
they had at any rate lesions sufficiently extensive to deter¬ 
mine their condemnation even under a system of partial 
seizure. It may be worth while to note here that Galtier 
himself, as the result of subsequent experiments made with 
raw flesh from tuberculous cattle, has arrived at the con- 
1 The details of these have already been published in the Annual Report of 
the Veterinary Department for 1890. 
