DESCRIPTION OF PLATES. XXV 



UESCRH'TION OF PLATE VIII. 



Bacillus diphtherise and Bacillus typhosus. 



Follovniiff p. 382. 



i'm. 1. — Cover-glass preparation from a pure-cultivation of Bacillus diph- 

 therias on blood serum ; obtained from the throat in a, typical case of 

 diphtheria. Stained with gentian-violet, x 1200. 



Fig. 2. — Cover-glass preparation from a pure-cultivation of Bacillus typhosus 

 on nutrient-agar ; from the spleen in a case of typhoid fever, Stained 

 with-gentian-violet. x 1200. 



DESCRIPTION OF PLATES IX. AND X. 



Swine Fever. 



FollotDing p. &i8. 



Plate IX. — Part of intestine from a typical case of swine fever, showing 

 scattered ulcers and ulceration of the ileo-caecal valve. 



Plate X. — From the same case of swine fever. The lungs were extensively 

 inflamed and partly consolidated, and the lymphatic glands were enlarged 

 and of a deep red or reddish-purple colour. ' 



DESCRIPTION OF PLATE XI. 



Bacillus tuberculosis. 



Following p. 378, 



The figures in this plate represent the bacilli of tuberculosis in 

 different animals, examined under the same conditions of amplifica- 

 tion and illumination, x 1200. Lamp-light illumination. 



Fig. 1. — Bacilli in pas from the wall of a human tubercular cavity. In 

 this specimen the bacilli are shorter than those in tubercular sputum, 

 and are very markedly beajJed. 



Fig. 2. — Bacilli in pus from a tubercular cavity from another case in man. 

 They are present in the preparation in enormous numbers. The proto- 

 plasm occupies almost the whole of the sheath, and the bacilli are 

 strikingly thin and long. 



Fig. 3. — Bacilli in sputum from an advanced case of phthisis, showing 

 the ordinary appearance of bacilli in sputum ; some beaded, others 

 stained in their entirety ; occurring both singly and in pairs, and 

 in groups resembling Chinese letters. 



Fig. 4. — Bacilli in a section from the lung in a case of tuberculosis in man. 

 The bacilli iu human tuberculosis are found in, and between, the tissue 

 cells ; and sometimes, as in equine and bovine tuberculosis, in the 

 interior of giant cells, but not so commonly. 



Fig. 5. — B'rom a cover-glass preparation of the deposit in a sample of milk 

 from a tubercular cow. The bacilli were longer than the average 

 length of bacilli in bovine tissue sections, and many were markedly 

 beaded. 



