GENERAL REPORT OF THE SCIENTIFIC COMMISSION. 337 
the point, to examine all the documents on the subject 
which had been transmitted to the administration of Agricul- 
ture, and to consider and point out the measures proper 
to be taken to put a stop to the ravages of the disease. 
GENERAL RESUME 
OF THE EXPERIMENTS INSTITUTED BY THE SCIENTIFIC 
COMMISSION ON PERIPNEUMONIA. 
The committee framed for their guidance two principal 
series of experiments, having for their object : — 
1st. To ascertain the influence which the organisation of 
the healthy animal is capable of exercising in the course of 
their cohabitation with animals of the same (bovine) species 
suffering under peripneumonia. 
2d. To investigate the effects of inoculation on healthy 
animals of the bovine class for peripneumonia, and especially 
to note if animals inoculated with the fluid (or virus) extracted 
out of the lungs of a beast affected with the disease, acquired 
by the inoculation such immunity from the disease as 
henceforth put him out of the reach of contagion. Subjoined 
is the resume of these two series of experimental inquiry, 
together with the conclusions to which they lead: — 
Experiments on Cohabitation . 
In instituting these experiments, the committee proposed 
the solution of the following questions : — 
1 . Is epizootic peripneumonia susceptible of being trans- 
mitted by cohabitation from sick to sound animals ? 
2. In the case where contagion is found operative in this 
manner, do all the animals of the kind living in the same 
habitat of contagion contract the disease, or are there some 
who resist its influence ? And, in the latter case, what pro- 
portion of animals fall sick, and what remain unaffected? 
3. Among those which contract the disease, how many 
recover their health, and in what conditions? How many sink 
from the disease ? 
4. Are there any animals of the bovine species who prove 
decidedly opposed to the contagion of peripneumonia? 
5. Are animals of this species preserved for the future from 
being attainted with this disease, when after a first cohabita- 
tion they have presented no more than symptoms of slight 
indisposition, and that consisting principally in a cough more 
or less persistent? 
