Fig. 71. — B. Diphtheri/E. 



Cover Glass Preparation, Serum Culture, 34 hours' growth 

 (37 C), Roux's Stain, Jj apochromat, Projection ocular 6. 

 x 1000. 



Fig, 72. — B. Diphtheria. 



Cover Glass Preparation, Agar Culture, 48 hours' growth 

 (37 C), Roux's Stain, T ' 2 apochromat, Projection ocular 6. 

 x 1000. 



