78 SYNOPSIS OF CONTINENTAL VETERINARY JOURNALS. 
tible of charbon on inoculation under almost any conditions 
of surrounding circumstances, others remain unaffected, 
unless the conditions are of a highly special character, as 
witness MM. Pasteur and Joubert’s experiments with 
fowls. Also some species with difficulty receive the disease, 
be the surrounding conditions favorable or otherwise. The 
author asserts that these differences exist also between 
animals of the same species but of different rearing and 
parentage. When occupied during last spring in experi¬ 
mentally elucidating the general theory of infectious dis¬ 
eases at his course of practical medicine, he inoculated 
among others certain Algerian sheep, and all these resisted 
the disease. He had previously observed immunity in cer¬ 
tain sheep, but attributed it either to defective material or 
unsatisfactory inoculation, but among other facts he ob¬ 
serves two cases. In the first, a sheep was inoculated with 
matter from a cow, but exhibited no signs of disorder, 
though death resulted in two rabbits similarly treated. In 
the second case, the inoculation matter was taken from a 
goat which died from spontaneous charbon; this was intro¬ 
duced into a merino sheep which it killed in thirty-six 
hours. A portion of the spleen of that sheep, extremely rich 
in Bacteria, was pressed in a mortar with a little water, and 
supplied, after filtration, a liquid abounding in the agents of 
charbon infection. Of this eighteen drops were injected 
into the jugular of a merino ram. A quantity of the same 
material was injected subcutaneously on the left thigh of a 
sheep of the same breed, also six inoculation punctures with 
a lancet charged with blood from the spleen were made on 
the right thigh. The ram died of charbon on the ninth day 
at 5 a.m. As for the sheep, it resisted the inoculation, 
manifesting no ill results except an abscess at the seat of 
puncture of the left thigh, which opened on the sixth day 
and healed readily. The author concludes that the former 
may have been an imported African sheep, and that the 
latter illustrates the fact that animals may, on French soil, 
acquire an inaptitude for the reception of charbon. Around 
Lyons now are found many sheep imported from Algeria, 
either of the pure Barbary breed or more or less crossed 
with the large- tailed Syrian sheep. “ I have had bought, 
in different lots, nine of these animals of clearly ascertained 
rearing (with one exception) and of undoubted origin. All 
of them proved absolutely refractory to the culture of Ba¬ 
cillus anthracis. The attempts to convey charbon to these 
by inoculation were repeated in one case as many as five, 
generally three times, and in one case only twice. The 
