594 APPLICATION OF METHODS OF BACTERIOLOGY 



BACILLUS CHAUVEI, ARLOING, CORNEVIN, AND 

 THOMAS, 1887. 



Synonyms: The bacillus of symptomatic anthrax — Baotferife du charbon 

 symptomatique (Fr.) — Bacillus des rausohbrand (Ger.). 



It is the organism concerned in the production of the 

 disease of young cattle and sheep commonly known as 

 "black leg/' "quarter evil," and "quarter ill," a disease 



Fig. 104 



Bacillus of symptomatic anthrax. A, vegetative stage — gelatin culture; 

 B, spore-forms — agar-agar culture. 



that prevails in certain localities during the warm months, 

 and which is characterized by a peculiar emphysematous 

 swelling of the muscular and subcutaneous cellular tissues 

 over the quarters. The muscles and cellular tissues at the 

 points affected are seen on section to be saturated with 

 bloody serum, and the muscles particularly are of a dark, 

 almost black color. In these areas, in the bloody transu- 



