THE MICROSCOPE IN MEDICINE AND SANITATION. 115 
The presence in the blood of free “pigment,” probably 
stainable material from decomposed blood-cells or para- 
sites, is characteristic of malaria. 
a 
Fic. 45.—THE MatrariAL Parasite (STAINED). (After Slater and 
Spitta.) 1000 diameters. 
6. The Examination of Sputum for Tubercle Bacilli, 
and the Cultural Diagnosis of Diphtheria.—Besides the 
