Bui. 852, U. S. Dept. of Agriculture. 



PLATE III. 



Fig. I. — Division Box over Pipe Line System in California. 



Where color is used to determine velocity in pipe entering such a box, the last trace of color can not 

 be determined directly, as whole pool is then tinted. See page 14. 



Fig. 2. — Division Stand on Pipe System in California. 



Piezometer tube is thrust into pipe line and pressure head siphoned over edge of stand to glass gauge 

 tube. Note small iron pipes, in order to allow escape of air near inlet to pipes conveying water 

 from the stand. See page 53. 



Fig. 3. — Simms Creek Siphon, Sun River Project, U. S. 

 Service, Montana. (Pipe No. 35.) 



Reclamation 



