Liquid Air iqoon the Bacillus Tuberculosis. 



501 



Tubes. 



Treat- 

 ment. 



Animal 

 died or 

 killed. 



After 



Precis of post-mortem results. 



G. 



One week 

 ■without 

 contact 



H. 



Forty-two 

 days 

 without 

 contact 



Forty-two 



days 

 toith con- 

 tact 



Alternate 

 exposure 

 as above 

 to room 

 tempera- 

 ture and 

 extreme 

 cold 



died 



studded throughout with innumerable 

 tubercles. Spleen enormous, and 

 crammed with tubercle bacilli. Lungs 

 one mass of tubercle. 



97 days | Tubercular. Much emaciated. Group 

 of hard calcareous glands in right in- 

 guinal region. Ditto in left. Retro- 

 peritoneal glands enlarged, hard, and 

 calcareous. Liver studded with mi- 

 nute tubercles. Lungs amass of mili- 

 ary tubercle. Peri-bronchial glands 

 much enlarged. Mesenteric glands 

 enlarged and caseating. Tubercle 

 bacilli found. 



died 



94 days 



killed 



94 days 



killed 



100 days 



Tubercular.* Inguinal glands enlarged, 

 hard and calcareous. Retro-periton- 

 eal glands ditto. Liver much enlarged 

 and markedly tuberculous. Spleen 

 enormously enlarged and crowded 

 with tubercles the size of a millet seed. 

 Lungs crowded with tubercles ranging 

 in size from that of a small pin's head 

 to that of a mustard seed. In sub- 

 maxillary region a group of six en- 

 larged glands the size of a haricot, 

 together with several smaller ones, all 

 hard and calcareous. Mesenteric 

 glands enlarged, but not so seriously 

 affected as other organs. Tubercle 

 bacilli found. 



Tubercular.* At seat of inoculation a 

 large caseating nodule the size of a 

 haricot. Liver enormously enlarged, 

 friable, and permeated throughout 

 with minute tubercles. Spleen much 

 enlarged and crammed with minute 

 tubercles. Lungs crowded with tuber- 

 cles ranging in size from that of a millet 

 seed to that of a grain of rice. Peri- 

 bronchial glands enlarged and caseat- 

 ing. Mesenteric glands but slightly 

 affected. Tubercle bacilli found. 



Animal very well nourished and in ex- 

 cellent condition. A small calcareous 

 nodule at seat of inoculation. Spleen 

 slightly enlarged. A few minute 

 tubercles in lung structure, but rare. 

 Peri-bronchial glands slightly en- 

 larged. Tubercle bacilli found, but 

 with difficulty. 



# The emulsion used for inoculation of these two animals was of much greater 

 density than that employed in other cases. 



