Bulletin 831, U. S. Dept. of Agriculture. 
Plate XIII. 
MSTE P,T£ 
mTpL 
T~F-*r 
r^i-m^m 
SCS3 
DIAGRAM 
HYDRAULIC MOMTORY 
fipcaraius used m fesi shc#n hc\ 
h*ai/*j lines 
SWlTCkMMQ 
DETAIL "DAM - . r ,- 
TOP SUPPORT "SIPHON 0c * 
'COLLAR'- HODCL 
_gW0CD BLQi* 
DlRGRBM "MODEL 
SHOWING 4 pjsmncEs 
SfMBOLS **"o°TERM5 USED. 
of ducwqe hp 
Diagram of Testing Laboratory and Setting of Siphons on Crest. 
For experiments on models at Tkroop College (California). 
