LIST OF ILLUSTRATIONS. 
Page. 
Plate 1. Wild yeasts in pure culture__ 50 
2. Character of the malarial parasites in the blood of Filomena Mar¬ 
tinez at the time it was filtered__ 80 
8. Character of the malarial parasites in the blood of Andres Mendez 
at the time it was filtered__ 87 
Figure 1. Rosenau’s spreader for making blood smears_ 53 
2. The arrangement used for filtering through a Pasteur-Chamber- 
land bougie B___ _. 82 
3. Showing the method of filtering through a Berkefeld filter by 
means of a hand vacuum pump_ 83 
4. Showing screen containing 16 strands or 15 meshes to the inch. 
Allows male and female stegomyia faseiata to pass_ 96 
5. Showing screen containing 20 strands or 19 meshes to the inch, 
through which stegomyia fasciata can not pass _ A_ 96 
TEMPERATURE CHARTS OF— 
Marcos Cruz_ 61 
Bonifacio Orea _ 63 
German Ramos. _ __ 65 
Guadalupe Gomez_ 66 
Filomena Martinez ..._ 79 
Andres Mendez_ 85 
Luis Peredo___... 90 
Jose Ojeira .. 91 
(iv) 
