RE3IEDIES AGAINST MOSQUITOES 189 



the sanitary inspections at each post be charged with the super- 

 vision of the details of these precautions. 

 Very respectfully, 



Your obedient servant, 



J. R. Kban, 

 3Iajor and Surgeon, (J.S.V., Chief Surgeo7i. 

 By Command of Brigadier-General Lee : 

 R. E. L. MiCHiE, 



Assistant Adjutant- General. 



General Orders, No. 6. ^ 



Headquarters Department of Cuba, 

 Havana, December 21, 1900. 



The Chief Surgeon of the Department having reported that it 

 is now well established that malaria, yellow fever, and filarial 

 infection are transmitted by the bites of mosquitoes, the follow- 

 ing precautions will, upon his recommendation, be taken for the 

 protection of the troops against the bites of these insects : 



1. The universal use of mosquito-bars in all barracks and espe- 

 cially in all hospitals, and also in field service when practicable. 



2. The destruction of the larv* or young mosquitoes, com- 

 monly known as " wiggletails, " or "wigglers, " by the use of 

 petroleum on the water where they breed. 



The mosquito does not fly far and seeks shelter when the wind 

 blows ; so it is usually the case that each community l)reeds its 

 own supply of mosquitoes in water- barrels, fire-buckets, po.st- 

 holes, old cans, cesspools, or undrained puddles. 



An application of one ounce of kerosene to each fifteen square 

 feet of water, twice a month, will destroy not only all the young, 

 but the adult females who come to lay their eggs. The water in 

 cisterns or tanks is not affected for drinking or washing purposes 



