Explanation of Plate 25. 



BACTERIUM PRODIGIOSUM. (Ehrenb.) Lehm. and Neum. 



I. Gelatin stick culture, one day at 22. 

 II. Agar streak culture, four days at 22. 



III. Agar stick culture, four days at 22. Puncture 



canal. 



IV. Agar stick culture, four days at 22. Surface. 

 V. Agar plate, two to four days at 22. Natural 



size. Colonies with and without development 

 of coloring matter. 

 VI. Agar plate, eight days at 22. x60. Superficial 



colonies reddish, deep ones yellowish. 

 VII. Gelatin plate, two days at 22. x60. Superficial 



colony just beginning to sink. 



VIII. Gelatin plate, two days at 22. Natural size. 

 IX. Potato culture, eight days at 22. Typical, with 



metallic reflex on the surface. 

 X. Potato culture, eight day sat 22. Atypical, white 



deposit. 

 XI. Microscopical preparation. Pure culture from 



agar. x 800. Fuchsin stain. 



XII. Bacteria with several flagella. xl?000. Stained 

 by Lofiier's method. 



XII- 



