SYSTEMATIC AND DESCRIPTIVE. 299 



METHOD OF STAINING THE BACILLI OF ULCERATIVE 

 STOMATATIS. 



Sections through the ulcerations .of the calf's tongue, or 

 of the inoculated tissue of the rabbit, were stained by 

 immersion in a mixture of magenta and methylene-blue. 

 They were then washed in spirit, cleared in clove- oil, and 

 mounted in Canada balsam. 



Bacillus of swine-typhoid (Bacillus of swine- 

 plague or swine-fever. Bacillus of pneumo-enteritis of 



FIG. 116. FROM A PREPARATION OF BRONCHIAL Mucus OF A PIG 

 [after Klein]. 



the pig, Klein*). Rods 23 /x, long, actively 

 motile (Fig. 116); spore -formation described (Fig-. 

 118). They can be cultivated in broth and hydro- 

 cele-fluid, and carried on through successive 

 generations. A drop of any of these cultivations 

 produces the disease in pigs, mice, and rabbits 

 (Fig. 117); the animals die with a characteristic 

 swelling of the spleen, coagulative necrosis of 

 tracts of the liver tissue, and inflammation of the 



* Klein, Report to Med. Ojfic. Loc. Govt. Board. 18771878. 



