238 The Control of Mosquitoes , 



a card kept for each house, thus giving a history 

 of the Aedes calopus producing status of every 

 house in Havana. 



The entire clerical work was accomplished by 

 two men. Abbreviations were used to save time 

 on reports: thus, "Real No. 3, 2B, 3T, iTna" re- 

 corded the fact that at No. 3 Real Street were 

 two barrels, three tanks, and one tinaja, in which 

 mosquito larvae were found. Similar abbreviations 

 were used for all classes of water containers. 



The inspectors' report forms were designed 

 to save time, and were arranged as follows : 



District No. 5 



Date 



Street No. B T Tna (Aljibe) Latas Pozos Misc. Name of 



House 

 Tenant 



-(Inspector) 



