Explanation of Plate 28. 



BACTERIUM FLUORESCENS. Fltlgge. 

 (Bacillus fluorescens liquefaciens. Fltigge.) 



I. Gelatin stick culture, two days at 22. 



II. Gelatin stick culture, eight days at 22. 



III. Agar streak culture, three days at 22. 



IV. Agar stick culture, four days at 22. 



V. Gelatin plate, two days at 22. Part of a super- 

 ficial colony, x 90. 

 VI. Agar plate, twenty-four hours at 22. x60. e, 



superficial; i, deep-seated colony. 

 VII. Gelatin plate, three days at 22. Natural size. 

 VIII. Microscopical preparation. Pure culture from 



agar plate, x 800. 

 IX. Potato culture, four days at 22. Natural size. 



Vide PI. 22, V. ; PI. 14, IX. 



X. Bacteria with flagella, usually one, more rarely 

 two or more, x 1,000. Lomer's stain. 



28 



