XV] ANAEROBIC BACILLI 385 



tissues. The disease, wlien it ajipears, rapidly spreads 

 amongst young cattle and sheep ; rare amongst horses, it 

 is unknown amongst swine or poultry. The animals 

 affected are quiet, do not feed, and show high temperature ; 

 on one or the other quarters — generally one of the hind — 

 there appears a large diffuse swelling, on account of which 



Fig. 156. — Film Specimen of Blood of a Guinka-lig dead after ,'^ulcutaneous 



I.\OCULATION' OF THE EaCILLUS OF S V.^1 1'TOM ATIC ChAKLOX. 



Blood discs and long chains of bacilli. 

 X 1000. 



the animal is lame and cannot move that extremity. In 

 the course of thirty-six to forty-eight hours death takes 

 place. On post-mortem examination the tumour is seen to 

 be located subcutaneously ; here the connective and 

 muscular tissues are dark, almost black, gangrenous, and 

 contain a large quantity of sanguineous serum and a large 

 quantity of gas bubbles (said to be CO., and methane). 



c c 



