88 MORPHOLOGY OF THE BACTERIA. 
which, when set free, give birth to other rods 
of Bacillus (Cohn). 
B. anthracis, Cohn (Bactéridie charbonneuse, Da- 
vaine ). 
Species very similiar to the preceding, generally 
longer and always motionless; length 4 to 12 and 
even 50 yw, thickness, scarcely appreciable, 0.8 to 
14 » (Bollinger). 
The B. anthracis is developed in charbon 
(malignant pustule of man, sang de rate of 
sheep, maladie de sang of cattle, fiévre charbon- 
neuse of horses), and in the rabbit, the rat, ete. ; 
never in the dog, the cat, the birds, and cold- 
blooded animals. It is found above all in the 
capillary vessels. Cultivated in suitable media, 
such as the aqueous humor of the eye of the 
ox, the Bacillus of anthrax develops spores in 
the interior of its filaments, which may germin- 
ate and reproduce rods (Koch). 
According to recent observations not yet 
published, by cultivating the B. Anthracis in 
the blood of the dog, a development of veritable 
sporangia may be obtained, containing from 
three to six spores (Toussaint). 
B. amylobacter, Van Tieghem ( Amylobacter, Uro- 
cephalum and Clostridium Trécul). 
B. occurring, like the preceding, under various 
forms,—3in pointed cylindrical filaments of 6.6 to 
26 w in length and 1.1 w in thickness, or in form of 
tadpole, with a spore in the terminal swelling, or of 
a spindle, with a spore in the middle. In fact, it 
does not differ from B. subtilis, except by the appear- 
