PLATE 26. 



Bacterium putidum (Fliigge). Lehm. and Neum. Bac- 

 terium fluorescens putidum Fliigge. (Bacterium 

 fluorescens non-liquefaciens An tor.) 



I. Gelatin stab culture, three days at 22. 

 II. Gelatin plate, twenty-four hours at 22. X 90. 

 Superficial colony. Compare Plate 14, vm; Plate 19, in. 



III. Gelatin plate, twenty-four hours at 22. X 90. 

 Deep colony. 



IV. Gelatin plate, four days at 22. Natural size. Ap- 

 pearance of colonies upon a dark background. 



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

 Compare also Plate 18, ix. 



VI. Microscopic preparation. Pure culture from gela- 

 tin plate. X 800. Upon agar, threads are usually pro- 

 duced. 



VII. Agar plate, eight days at 22. Natural size. Ap- 

 pearance of the colonies upon a white background. 



VIII. Agar plate, three days at 22. X 60. (e) Super- 

 ficial, (i) deep colonies. 



IX. Bacteria with one, more rarely two flagella. X 

 1000. Stained according to Loffler. 



IX. 



