Bui. 376, U. S. Dept. of Agriculture. 
Plate II. 
Fig. 1.— Thumb Points to Top of Piezometer Column (Gauge 2) Showing near 
Approach of Pipe Line to Hydraulic Gradient. (Pipe No. 31.) 
FtG. 2.— Outlet Structure, Pumping Line of Pasco Reclamation Co., Washington. 
(No. SS.) Discharge measured by rod floats in this concrete section. 
Fig. 3-Alignment and Profile of Siphon, Burbank Co., Washington, (No. 39.) 
