N. J. Mosquito Extermination Association 63 



were going to do Anopheles work only. We found out differ- 

 ently, so we are interested in mosquito extermination as well as 

 you. 



About eight years ago Congress made an annual appropria- 

 tion of $17,000 for malaria investigations in the United States. 

 Scientific studies have been made of methods of control, habits 

 of Anopheles, the collecting of statistics, etc., and the work is 

 being continued. 



During the past year one hundred and eighty communities in 

 the malaria belt of our country were doing malaria control work, 

 which cost about $270,000. The studies and demonstrations 

 extend southward from Virginia, Tennessee and Missouri, and • 

 during the present year Missouri and Southern Illinois will under- 

 take Anopheles control. In the northern States we have numer- 

 ous cases of *'man made" mosquito nuisances, and in the south- 

 ern states too much "man made malaria." Many engineering 

 schools are interested in this matter and a recent inquiry showed 

 that twelve out of forty technical schools are teaching the rela- 

 tion of Anopheles mosquitoes to engineering construction costs 

 and to health conditions in areas where construction operations 

 are under way. The schools of the South are more interested 

 than those of the North, but the northern engineering schools 

 should at least point out to the senior students the distressing 

 conditions caused by certain changes of topography that we might 

 properly term defective engineering. You may be interested to 

 know that where federal funds are used for highway construc- 

 tion, it is now required that borrow pits, fills and culverts must 

 not increase mosquito production. 



Recently the state highway engineer of one state notified his 

 assistants that if they can't arrange to prevent increasing mos- 

 quito production, that he can find sgmebody else who can. It is 

 rather a step in advance when the prominent people of the country 

 are taking much interest in mosquito control. 



The St. Louis Southwestern Railway, which covers a large, 

 rich territory from Missouri to Texas, has an efficient department 

 of sanitation which has been concentrating on malaria control 

 work since 191 7, because it has found such a policy is sound and 

 profitable business for a progressive railway system. The Cen- 

 tral of Georgia Railway has started similar work, and the printed . 

 report of malaria control operations of the St. Louis South- 

 western Railway is well worth reading. 



Many railways should be more interested in mosquito control 

 than they are, and those of you who are directing field operations 

 will find interesting information in the pamphlet I have just re- 

 ferred to, published by the St. Louis Southwestern Railroad. 



