31 ALAR FA AND MOSQUITOES 



53 



in a few years. The experiment consisted in protecting" 

 from malaria railway emplo3^es and their families, living 

 in ten cottages, at the stations of St. Nicolo, Yarco, 

 and Albanella, situated along the Battipaglia-Keggio 



Fio, 4. — Exporiiiicntnl House Occupied by Drs. Snniboii and Low on tlie 

 C:inip;vu:n:i in the Suninier of 1900. (From the Journal of Tropical 

 Medicine. ) 



Railway. They numbered 104 persons, including thirty- 

 three children under t(ni years of age. Of these 104 in- 

 dividuals, at least ('l<'vcii. including fonr children, had 

 never suti'ered from the disease, not having [)reviously 



