Explanation of Plate 17. 



BACTERIUM TYPHI. Eberth, Gaffky. 

 (Typhoid bacillus.) 



I. Gelatin plate, eight days at 22. x90. Superfi- 

 cial colony. Vide PI. 15, VII., VI. 

 II. Gelatin plate, eight days at 22. x!50. Su- 

 perficial colony. 



III. Gelatin plate, four days at 22. Natural size. 



IV. Agar plate, four days at 22. Natural size. 



V. Agar plate, four day sat 22. X60. Deep-seated 



colonies. 

 VI. Agar plate, four day sat 22. x60. Superficial 



colonies. 



VII. Potato culture, five days at 22. 

 VIII. Microscopical preparation. Pure culture from 



agar plate, x 1,000. 



IX. Microscopical preparation. Bacilli with flagella. 

 Copied from Fraenkel and Pf eiffer : " Atlas d. 

 Bakterienkunde," Plate 54, Fig. 111. 

 X. Microscopical preparation. Long thread, thickly 

 studded with flagella. x 1, 500. Loffler' s stain. 

 XI. Microscopical preparation of bacterium typhi 

 murium Loftier, with flagella and capsule. 

 X 1, 500. Stained by Longer' s method. 



17 



