PLATE 17. 

 Bacterium typhi. Eberth. Gaffky. (Typhoid Bacillus.) 



I. Gelatin plate, eight days at 22. X 90. Superficial 

 colony. Compare also Plate 19, vi, vii. 



II. Gelatin plate, eight days at 22. X 150. Superfi- 

 cial colony. 



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



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



V. Agar plate, four days at 22. X 60. Deep colo- 

 nies. 



VI. Agar plate, four days at 20. X 60. Superficial 

 colony. 



VII. Potato culture, five days at 22. 

 VIII. Microscopic preparation. Pure culture from agar 

 plate. X 1000. 



IX. Microscopic preparation. Bacilli with flagella. 

 Copied after Frankel and Pf eiffer. ' ' Atlas der Bakterien- 

 kunde, " Plate 54, in. 



X. Microscopic preparation. Long threads thickly 

 beset with flagella. X 1500. Stained by Loffler's method. 



XI. Microscopic preparation of Bacterium typhi murium 

 Loffler, with flagella and capsule. X 1500. Stained by 

 Loffler's method. 



X. XI. 



