VIRULENCE OF BLOOD AND MUSCLES IN TUBERCULOSIS. 
239 
self admit that the one positive result is within the limit of 
accidental error. 
I do not wish to attach undue weight to the small number 
of experiments made by myself, but it cannot be denied that 
the negative result of those made with the blood of horses is 
diametrically opposed to the view that the blood can be the 
carrier of tubercle bacilli in any considerable proportion of 
cases, or for any considerable period. The belief that in any 
circumstances tubercle bacilli multiply in the blood-current, 
or even 'for any length of time continue to make the round of 
the circulation, is probably unfounded. In support of this 
statement and in corroboration of the results obtained in 
these experiments with tubercle bacilli, I may cite the experi¬ 
ments of Chauveau (quoted by Frank and Lubarsch), 1 who 
found that even anthrax bacilli when injected in enormous 
numbers into the blood-stream, are very rapidly filtered out 
in the capillaries of the various organs. 
Turning in the next place to the published experiments 
with meat juice, one finds a condition of things which at the 
first glance appears to tell strongly in favor of the contention 
that tubercle bacilli are not 
infrequently 
harbored in the 
muscular system of tuberculous animals. Thus, a table com- 
piled by M. Butel in 1889 sho’ 
wed the general result at that 
date to be as follows: 
Experimenter. 
Number of 
Experiments. 
Positive Results. 
Bollinger 
12 
O 
Gratia and Lienaux . 
3 
2 
Peuch 
2 
2 
Galtier 
25 
6 
Veyssiere and Humbert 
2 
2 
Arloing 
2 
1 
Nocard 
21 
1 
Total . 
67 
14 
To the above list there failed to be added the 3 experi¬ 
ments with muscle-juice from horses referred to in this article 
1 Zeitschrift fur Hygiene, Elfter Band, zweites Heft, p. 259. 
