'i^S N. J. Mosquito Extermination Association 



particularly the breeding of anophelines, within the cantonment 

 area. Outside the cantonment, as Mr. Le Prince pointed out last 

 night, the United States Public Health Service took over the work. 



The results that were obtained from the measures taken are 

 very hard to estimate. Reliable statistics have not been prepared, 

 or at least published, as far as I know. But I do know from re- 

 ports of the Surgeon General's office that less than one per cent 

 of the cases admitted to the hospitals were admitted with true 

 malaria. So that we have been able, through the work of perhaps 

 2,000 or 3,000 men that were detailed in these various camps in 

 the country, with the cooperation of the Public Health Service, to 

 cut down the malaria rate from 52 per cent during the Civil War, 

 and perhaps 69 per cent in the Spanish-Amierican War, to less 

 than one per cent in this war. 



It was impossible, on account of the great number of men coming 

 through the camps, to do malarial index work, so that we had no 

 means of sterilizing the carriers who were sent abroad, unless they 

 had an active case of malaria during the time they were in the 

 training camp in this country. And probably a great many malaria 

 carriers may have gone abroad simply through the magnitude of the 

 problem, it being absolutely impossible to examine the blood of so 

 many men with the laboratory facilities at our disposal before they 

 went abroad. 



In my own camp, of the 365 proved cases of malaria that were 

 discovered and were admitted to the hospital, we found that not a 

 single one was contracted in camp. Of course there were probably 

 more than 365 that came into camp among the 60,000 men stationed 

 there that summer; but we had only 365 in which the plasmodium 

 was actually found in the blood. 



President Engle: The next paper is by Jesse B. Leslie, 

 Captain in the Sanitary Corps of the U. S. Army. 



