472 INOCULATION FOR PLEURO-PNEUMONIA IN CATTLE. 
belonging to M. Willems, sen., were attacked with Pleuro- 
pneumonia subsequent to their inoculation, and that one 
died and the other was killed, as her recovery was past hope. 
The onus of this casualty would seem to have been inten- 
tionally, thrown upon us, as we are said, by M. Willems, sen., 
to have inoculated these animals when in Hasselt , and to have used 
for the purpose improper material . It will, however, before 
making any comments on this statement, be better to quote 
at length the particulars as published in the report. 
Under the heading of “ Faits contestes,” p. 174 et seq., 
the Commissioners, quoting the minutes of the proceedings 
at Hasselt, say, “ On the 2d of December, MM. J. Nolens 
and T. Vaes proceed to open a beast, aged five years, belong- 
ing to M. Willems. The chest contains an abundant sero- 
sanguineous effusion, in which float albuminous flakes ; the 
left lung, adhering to the costal pleura, is hepatized at its 
anterior portion.” MM. Nolens and Vaes add, “ The par- 
ticulars that we have gathered from MM. Willems, father and 
son , are that this beast was inoculated during September last by 
one of the two English veterinary surgeons * who came to examine 
their cattle, and who wished to see the application of the 
process ; that it was inoculated with virus taken from the 
tail of another inoculated beast ; and lastly, that the opera- 
tion had no results . A portion of the lung and the end of the 
tail, upon which two large cicatrices may be perceived, are 
contained in the jar No. 19.” 
“On the 16th December, MM. Vaes and Maris, delegates 
for that purpose, went to the knacker’s yard in order to make 
an autopsy of another beast belonging to M. Willems. The 
animal, which was inoculated on September 1st, bears the 
mark of a successful operation. It presented the first symp- 
toms of exudative Pleuro-pneumonia on December 4th. 
“ On the 1 1th, M. Vaes was requested by the proprietor 
to treat it. The treatment was continued till the 15th, when 
it was decided that the animal, being unfit for consumption, 
should be killed and buried. The chest contained a large 
quantity of fluid, the right lung was adhering to the costal 
and diaphragmatic pleura, was entirely hepatized and of 
enormous size, A part of the lung and the end of the tail 
are preserved under the cover No. 25. 
“We read in the minutes of the proceedings,” add the 
* It is necessary to explain that I was accompanied in my visit to Belgium by 
my friend and colleague Professor Morton, who was desirous of going to the 
Continent for his summer’s vacation. He never on any occasion interfered with 
my investigation, it being a thing entirely foreign to his avocations as a chemist 
and his taste as a man of science. 
