Fig. 27. — B. Tuberculosis in Sputum. 



Cover Glass Preparation (Intracellular), stained as Fig. 25, 

 ^2 apochromat, Projection ocular 6. x 1000. 



Fig. 28. — B. Tuberculosis. 



Pus from Tubercular Cavity, stained as Fig. 25, ^ apochro- 

 mat, Projection ocular 6. x 1000 



