78 Beport of the Bilharzia Mission in Egypt, 1915 



If a campaign against bilharziosis were com- 



Administra- menced on the lines here'proposed it is evident that 



'^^^^' the whole scheme should be under the charge of 



a medical zoologist, who should be attached, not solely to the Public 



y Secondary Canal 



Pumping 

 Station ' 



I' 

 1: 



..V 



lYf 



%fi 



Infiltration Water Drain 



!_.« u il. iL ^-=- ^urf^cs Wster Drain 



I ^ . " =.- 







f 



CO 



Fig. 38.— The Mosseri system of drainage. (After Willcocks and Craig.) 



SECTION 



'^^^^^\<!^'!^^!Jri^^^^:^^^^^T^^^^W^?^?^W^'?^^- 



Fig. 39. — Section showing relation of infiltration and surface drainage in the Mosseri 

 system. (After Willcocks and Craig.) 



Health Service as in an ankylostomiasis campaign, but also to the 

 Department of Irrigation. In this way only could the full and 

 continuous effect of the present administrative control of the Nile 



