84 SUMMARY OF THE ANTIMALARIAL CAMPAIGNS 



improvement in mosquito-ciirried diseases, such as 

 yellow fev^er and malaria. The city has undergone 

 a complete transformation in this respect. 



Similarly favourable reports come from Havana 

 and from many other towns in South America. 



In British Honduras the antimosquito war, which 

 I commenced in 1905, more particularly directed 

 against the stegomyia, has had its effect in reducing 

 the numbers of mosquitos of all kinds and directing 

 attention to protecting against the anophelines. In the 

 surv^ey which I tlien made of Belize I pointed out the 

 breeding grounds of anophelines, and how by improved 

 street and road drainage, and by levelling up the sub- 

 merged compounds, by canahsation, and by removal of 

 all odd receptacles, and the rigid screening of all water 

 cisterns, it would be possible to banish yellow fever and 

 greatly diminish or banish malaria. The result of put- 

 ting into practice these measures has been a marked 

 improvement in mosquito-borne diseases. A screening 

 ordinance was passed in 1906, and since then much 

 has been done to clear bush and to drain, and to keep 

 the yard free from odd water receptacles. 



ANTIMALARIAL CAMPAIGNS IN THE AVEST INDIES 



We have already, in the cliapter upon General 

 Sanitation, seen the progress which the W^'est Indies 

 have made in reducing mosquito-borne diseases, brouglit 

 about, as it was there sliown, by pipe-borne water 

 supplies, drainage, and building extension. In this 

 place I wish to draw attention, howexer, to the specific 

 means which have been set on foot to substantially 



