PLATE 5 
Small non-sporulating rods. 
Fig. 49.—Coccobacilli derived from large cells. Azotobacter Beijerinckii (No. 15). 
Mannite-nitrate agar, 7 days. 
Fig. 50.—Typical coccobacilli. A. Beijerinckii (No. 15). Beef agar, 7 days. 
Fig. 51.—Small rods with gonidia and regenerative bodies. A . chroococcum (No. 25). 
Potato, 3 weeks. 
Fig. 52.—Tendency to make longer sporulating rods. A. Beijerinckii (No. 15). 
Potato, 6 days. 
Fig. 53.—From small rods to fungoid and sporulating cells. A . Beijerinckii (No. 15). 
Beef broth, 4 weeks. 
Fig. 54.—Tendency to return to sporulation. Bacillus pumilus (No. 60). Beef 
gelatine, 7 days. 
Fig. 55.—From small rods to fungoid and globular growth. A. vitreum (No. 9). 
Salt agar, 3 days. 
Fig. 56.—Small rods and large globules growing from symplasm. A. agile (No. 7c). 
Beef agar, 3 weeks. 
Fig. 57.---Small rods producing Azotobacter-like gonidangia. Bacterium lactts vis¬ 
cosum (No. 89b). Mannite-nitrate agar, 1 week. 
Fig. 58.—Small rods assuming fungoid growth. Bacillus pumilus (No. 61). Milk, 
2 weeks. 
Fig. 59.—Small and large rods growing from symplasm. A. agile (No. 7c). Potato 
agar, 1 week. 
Fig. 60.—Small and large rod-like and round cells growing from symplasm. A . agile 
(No. 16b). Beef agar, 1 week. 
