REMEDIES AGAINST 3I0SQUIT0ES 189 



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

 vision of the details of these precautions. 

 Very respectfully, 



Your obedient servant, 



J. R. Kean, 

 Major and Surgeon, U.S.V., Chief Surgeon. 

 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 Avell 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 larvae or young mosquitoes, com- 

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

 petroleum on the water wdiere they breed. 



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

 blows ; so it is usually the case that each community breeds its 

 own supply of mosquitoes in water-barrels, fire-buckets, post- 

 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 (.')X,\^i^. The water in 

 cisterns or tanks is not affected for drinking or washing purposes 



