66 
M. S. ARLOING. 
In a greater quantity of the muscular juice, or of that ob¬ 
tained from various regions of the organism, it is certain that 
more positive results might be obtained. 
We had intended to make this demonstration on a larger 
scale, and more than one hundred guinea pigs had been ob¬ 
tained for the purpose, but unfortunately a contagious disease 
baffled our intentions in a few days. The experiment, how¬ 
ever, which we contemplated was successfully undertaken by 
Mr. Galtier, though less extensively, and he found that the 
same juice, which had tuberculized in a dose of four cubic 
centimetres, imparted the disease when injected in a dose of 
twelve. And again, he produced tuberculosis with the juice 
of the muscles of the shoulder; when under the same condi¬ 
tions that of the muscles of the thigh failed to take effect. 
The irregular and unequal mode of distribution of the 
virus in the muscles is again well established by the experi¬ 
ments of Mr. Stubbe, who recently filled the position of In¬ 
spector of the abattoir of Louvain, who, while some experi¬ 
menters failed in several attempts, each time upon different 
animals, succeeded twice with only a single animal in prov¬ 
ing the noxious character of the flesh; in a third trial, how¬ 
ever, obtaining a negative result, though experimenting with 
two animals. 
We therefore believe it to be an error to attribute a high 
value to negative facts, especially when the number of experi¬ 
ments has been restricted by an inadequate supply of test 
animals. 
We desire also to add that the virulence of the muscular 
juice does not give an exact idea of that of the flesh sold in 
the shops. Indeed, the latter contains lymphatic glands, 
which may conceal some tuberculous lesions, or bacilli, not¬ 
withstanding their appearance of perfect integrity. The 
recent works of Mr. Physalix have shown that in diseases 
where the microbes exist in the fluid media, the lymphatic 
glands easily contain germs with corresponding pathogenic 
proportions. But, as I desire as much as possible to adhere 
to the subject of tuberculosis proper, I will on this occasion 
mention a very interesting experiment of Mr. Loeret, the 
doyen of the Faculty of Medicine of Lyons. 
