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 



3. Character of the malarial parasites in the blood of Andres Mendez 



at the time it was filtered _ __- 87 



Figtjbe 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 fasciata to pass. _ 96 



5. Showing screen containing 20 strands or 19 meshes to the inch, 



through which stegomyia fasciata can not pass - 96 



TEMPERATURE CHARTS OF— 



Marcos Cruz r 61 



Bonifacio Orea _ _ 63 



German Ramos. . ,.. 65 



Guadalupe Gomez _ ._ 66 



Filomena Martinez _ ~__ 79 



Andres Mende.z 85 



Luis Peredo , 90 



Jose Ojeira 91 



(iv) 



