408 
SUMMARY EXPOSITION OF EXPERIMENTS 
For inoculation, we made use of fluid expressed from the 
lungs of animals consigned to slaughter from the first ap- 
pearance of the signs of peripneumonia, in taking the pre- 
caution of making use of the fluid during the first hours in 
which it had been received. 
The effects of inoculation became manifest through appa- 
rent symptoms, but on 132 subjects 1 15 turned out refrac- 
tory to it. It is not stated in what proportion gangrenous 
results come on, followed by death. It is not stated in what 
proportion gangrenous accidents supervened, not followed 
by death ; 10 animals succumbed, being the consequences of 
inoculation, which may be in the proportion of 7*50 per 100 
of animals inoculated successfully. Autopsy has not shown 
any pulmonary traces in animals who have sunk after inocu- 
lation, but of 247 subjects inoculated, with or without ex- 
terior signs at the point of inoculation, 10 have contracted 
peripneumonia, which is in the proportion of 6*47 per 
cent. 
“ These experiments,” say the Dutch Commission, “ do 
not tend to show the value of inoculation as a preservative 
means of pleuro-pneumonia,” because the inoculations have 
been performed on herds among whom the disease had 
already long been prevailing; they only establish a pre- 
sumption which was not converted into certainty, that when 
sound animals successfully inoculated shall become exposed 
again to the influence of contagion, they will remain re- 
fractory to it. 
2. Experiments of the Scientific Belgic Commission . 
The Belgic Commission has not accumulated less than 
5,301 facts of inoculation performed. In order to obtain a 
mass of documents so considerable, it has added to their 
body the civil veterinary service in Belgium, who have given 
them permission to call to their aid the intelligent and in- 
terested exertions of a great number of collaborators at 
once. 
The government have likewise given encouragement to 
inoculation on their side, by assimilating the losses caused 
by inoculation to those which resulted from the slaughter of 
animals ordered for the public wants, by instituting local 
Commissions, charged with the power of directing inocula- 
tion, and collecting the facts calculated to enlighten its 
history. 
The total amount of 5,301 beasts inoculated, of which the 
