406 SUMMARY EXPOSITION OF EXPERIMENTS 
without any possibility of knowing if they had come from a 
locality exempt from pleuro-pneumonia ; the Commission 
could assure themselves only that they were perfectly healthy. 
The same day the two beasts of the first lot, refractory 
to a first inoculation, were inoculated afresh ; all those of 
Tirlemont, w T ith the exception of one, having shown them- 
selves refractory to a first inoculation, the Commissioners 
repeated the operation on six others, on the 18th October, 
and, for the third time, on one of the cows of the first convoy, 
already inoculated twice unsuccessfully. It reserved but two 
animals already inoculated without avail ; one of the first 
lot, the other of J the second, in order to submit them, 
without re-inoculation, to the test of cohabitation. At last, 
a third inoculation was tried again, but without further suc- 
cess, on the six animals of the lot from Tirlemont, already 
inoculated twice fruitlessly. 
So that in all 16 inoculated animals, of w 7 hich 8 had taken 
at the first inoculation, 6 on which inoculation was repeated 
thrice fruitlessly, and 2 which w r ere submitted twice, also 
fruitlessly, to judge at least by the symptoms of local re- 
action, w hich amounted to next to nothing. 
These inoculations completed, we put into the same stable, 
in contact with animals labouring under peripneumonia — 
1. Two Ardenne cows and 1 ox, of the herd of Tirlemont, 
inoculated with success. 
2. Two Ardenne cows, inoculated tw 7 ice without success. 
3. And later, 2 aged cow s, inoculated by M. Willems at 
Hassell, and sent to the school of Curghim in order to un- 
dergo this test. 
“ From the 24th of September, the day of the commence- 
ment of the experiments of the Commission, up to the 6th of 
February, 1853, the date of the drawing up of the report, there 
has never passed but one period of one day, and a second 
period of eight, during which the stable has not enclosed 
beasts with peripneumonia, and their number has varied 
from 1 to 3; up to this day, all the subjects of experiment 
shut up in this stable have experienced no taint of cohabita- 
tion w 7 ith the infected animals.” 
The other beasts inoculated, with or without success, have 
been sent through the care of the Commission, and under 
its surveillance, into stalls infected with peripneumonia, and 
not one of them has contracted the disease. - 
It is not stated in the Belgian report that the Commission 
has made the counter-proofs of these essays, as with the 
experiment of the French and Dutch Commissions, in 
placing them at once in contact with sick animals and inocu 
