disregarded, and attention given wholly to the breeding places of 
those species responsible for the transmission of malarial fever. 
With regard to man as a host, it is necessary to have some 
knowledge of the limits of his infectiousness, i.e., the number of 
sexual forms of the malarial parasite necessary to infect susceptible 
mosquitos. 
Besides the question of hospitable species of Anophelines, there 
are other matters of much importance, such as latent malaria; the 
effect ot quinine on the parasites in man; the value of various 
larvacides; algacides; agents destructive to ditch grass, and a 
knowledge of the quality of wire screening, and the size of the 
mesh necessary to keep out mosquitos. 
OUTLINE OF THE SUBJECTS CONSIDERED: 
Anophelines of this region. 
Collection of larvae. 
Breeding out mosquitos and methods of feeding. 
Biting — infecting experiments. 
Estimation of gametes. 
Care of mosquitos after feeding. 
Method of examining for zygotes and sporozoites. 
Description of the malarial parasite in the mosquito. 
1 able of infecting experiments. 
Notes and conclusions from table of infecting experiments. 
Limit of infectiousness of man. 
Notes on the bionomics of Anophelines. 
Effect of salt or sea water on larvae. 
Experiments with larvacides. 
Experiments with agents destructive to vegetation, grass 
and algae. 
Experiments with screening of various mesh. 
R dative value of wire screening of various composition, 
based on practical tests and chemical analyses. 
Note on the value of the practice of killing Anophelines 
found in quarters and barracks. 
Ellect ot quinine upon the parasite in mosquito and man. 
