298 



BACTERIOLOGY. 



especially on nutrient gelatine rendered slightly 

 alkaline with sodium phosphate. They grow also 

 very well on the ordinary nutrient gelatine, form- 

 ing in plate-cultivations scarcely perceptible cloud- 

 like specks, and in a test-tube of nutrient gelatine 

 they form a delicately clouded cultivation along 



the needle track (Figs. 

 1 14 and 1 15). A small 

 quantity of pure culti- 

 vation carried through 

 many generations re- 

 produces the disease 

 when inoculated into 

 mice. The organs 

 should be hardened in 

 absolute alcohol, and 

 sections stained prefer- 

 ably by the method of 

 Gram (Plate XXII., 

 Figs, i and 2). 



Bacillus of ulcer- 

 ative stomatitis in 

 the calf, Lingard and 

 Batt. Rods 4 ^ 8 /i, 



mnrp in length I LL 

 or mor< ,ngin , ip 



in width. Spores are 

 frequently present. In- 

 jected into the rabbit or mouse they produce a fatal 

 result. They were observed in ulcerations on the 

 tongue and mucous membrane of the mouth of calves. 



Fig. ii 4 . Fig. ii 5 . 



PURE-CULTIVATIONS OF THE BACILLUS 

 OF SEPTICAEMIA OF MICE IN NUTRIENT 



GELATINE. 



Fig. 1 14. In two days. 



Fig. 115. in five days. 



