CHAPTER XV 



SCREENING AND PRACTICAL BESTRUCTION OF ADULT 

 ANOPHELES IN HOUSES 



QINCE Sambon and Low with their two com- 

 ^ panions lived for three months in their 

 screened hut in Ostia, Roman Campagna, where 

 malaria is usually prevalent, without contracting 

 it, attention has been directed to the possibility 

 of securing protection from mosquitoes by pro- 

 tecting the dwellings with mosquito-proof material 

 and a variety of fabrics have been used in various 

 places and many details of technique have been 

 elaborated. After many experiments, both in the 

 laboratory and in practice, the methods of mos- 

 quito-proofing described are now used in the 

 Canal Zone, where screening of dwellings has been 

 carried out on a scale never attempted elsewhere. 

 Because of the atmospheric humidity and the 

 salt laden air it was found that only the best 

 copper gauze will resist corrosion and subsequent 

 deterioration. The copper gauze used in the 



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