SPECIAL BACTERIOLOGY 
181 
Fig. 37.—Influenza bacilli, x 1100 diameters. (Park and Williams— Patho¬ 
genic Bacteria and Protozoa.) 
Fig. 38.—Bacillus pestis. Smear preparation of sputum, x 1000. (Hewlett— 
Manual of Bacteriology.) 
entrance of bacilli either through the skin or by the 
respiratory tract, in the latter case the disease is not 
unlike pneumonia. The disease is extremely dangerous 
causing great mortality. 
