Bui. 376, U. S. Dept. of Agriculture. 
Plate V. 
Fiq. 1 .—Trunk Line, Salmon River Power Co., New York. Taken on Reach Tested. 
Typical alignment. Straight in profile. (No. 51.) See figure 2. 
Fig. 2— Submerged Weir Below Power House, Salmon River Power Co. New York. 
Discharge measured by calibrating weir. (No. 51.) See figure 1. 
Fig. 3.— Mercury Manometer and Fluorescein Gun (Gauge Don 13^-Foot Pipe 
of Northwestern Electric Co., Washington. (No. 52.) 
