Proceedings of Sixth Annual Meeting 



79 



Mosquito Control in Army Camps 



BY JESSE B. LESLIE, B.SC, CAPT. SAN. CORPS, U. S. A. 



I can do no better than to base my remarks on a letter sent from 

 the Surgeon General's Office to those in charge of mosquito con- 

 trol work in the various cantonments and camps. This letter, sent 

 out by Col. William D. Wrightson, who was in charge of all the 

 Army anti-malarial work in this country during the war, showed 

 clearly what was expected of the men charged with this work, and 

 gives concisely a working drawing of this branch of the service. 

 It insisted on the following points: 



1. That a map of the camp and surrounding territory be pre- 

 pared on which all breeding places and drainage lines be shown. 

 That a duplicate may be filed with the S. G. O. 



2. That this mjap show in different colors (a) ditches to be 

 cleaned, (b) ditches already cleaned, (c) old ditches to be resloped 

 and graded, (d) new ditches, (e) swamip holes filled, (f) swamp 

 holes to be filled, (g) areas to be controlled by oiling. 



3. That this map be broug^ht up to date at the end of each month 

 and the rate at which the work was accomplished recorded. 



4. That the reservation be divided up into areas, one or more 

 inspectors assigned to each area, and that other inspectors be 

 trained. 



5. That a laboratory be established in which larvae might be 

 hatched out, both in order to determine types and for purposes of 

 instruction. 



6. That pins of different colors be used to designate on the map 

 Culex and Anopheles breeding places. 



7. That a careful record be kept of all malarial patients in 

 camp. This record to show (a) how long individual has been in 

 camp, (b) where from, (c) previous history of malaria, (d) move- 

 ments for ten days prior to becoming sick. 



8. That malarial cases be spotted on map and correlation ob- 

 served beitween anopheles breeding places and locattions where 

 malarial cases develop. 



9. That a curve or graph be kept showing the total number of 

 cases of malaria and the rate developing. 



10. That great care be taken in the placing of oiling drip cans 

 and the regulating of the drip. That a careful record be kept of 

 the amount of oil used and the cost of oiling per given unit. 



