PLATE 63. 



Mycobacterium lacticola /9 perrugosum. L. and N. 



I. Streak culture (glycerin-agar), two months old; 

 three days at 37°, then at 22°. Much elevated and wrinkled. 

 II. Plate culture (glycerin-agar), six days at 37°. X 

 60. Superficial colony. 



III. Plate culture (glycerin-agar), forty-eight hours at 

 37°. X 60. Superficial colony. 



IV. Plate culture (glycerin-agar), three days at 37°. 

 Natural size. Superficial colonies. Later the same were 

 larger, more wrinkled, and reddish. 



V. Potato culture, six daj^s at 22°. Later the same 

 became still more \VTinkled. 



VI. Alicroscojyic preparation. Glycerin-agar: (a) Three 

 days at 37°. X 1000. Stained with fuchsin. (6) Two 

 months at 22°. X 1000. Stained with fuchsin. 



VII. Microscopic preparation. Smear from the perito- 

 neal fluid of a guinea-pig, inoculated with butter. X 1000. 

 Stained \\dth tubercle bacillus stain. (From a preparation 

 of Dr. Dieudonne.) 



Mycobacterium phlei. Lehm. and Neum. 



VIII. Streak culture (gh'cerin-agar), eight da>'s at 22°. 

 The culture at first is pale orange ; later, it becomes darker 

 and wrinkled. 



IX. Plate culture (glycerin-agar), three days at 22°. 

 X 60. Superficial colony. 



X. Plate culture (glycerin-agar), eight days at 22°. 

 X 60. Superficial colony. 



XI. Plate culture (glycerin-agar), eight days at 22°. 

 Natural size. Superficial colonies. 



XII. Microscopic preparation. Glycerin-agar: (a) Three 

 days at 37°. X 1000. Stained with fuchsin. (6) Two 

 months at 22°. X 1000. Stained with fuchsin. 



