Fig. 9. — Spirillum Rubrum. 



Cover Glass Preparation, Agar Culture, Watery Fuchsine, 

 ,\- apochromat, Projection ocular 6. x 1000. 



Fig. 10. — Spirillum Rubrum. 



Cover Glass Preparation, Bouillon Culture, Carbol-Fuchsine. 

 T \ apochromat, Projection ocular 6. x 1000. 



