23, Bureau of Plant Industry, U. S Dept of Agriculture 



Plate VII. 



FlG 1. -field of Berseem before Flowering. 



Fig. 2.— Embankment Dividing Two Irrigation Basins. 



' ..A 



&*'• 



XM. ' f 



^^ 







** *V 





Fig. 3.— Flood Gate for Irrigation Basins Shown in Fig. 2. 



