68 BULLETIN 194, U. S. DEPARTMENT OF AGRICULTURE. 
No. 232, SF-26**, Logan and Benson-Ward Canal, Utah. Bed of medium-sized 
gravel. Flow much impeded by horsetail moss which occupied about one-fourth 
of water section. Coefficient n=0.0352. 
No. 234, W-9-f- -f , Hillsboro Ditch, Colorado. In general bad condition. Irregular 
gradient. Banks rough. Gravel channel scoured by current. Coefficient n=0.0371. 
No. 238, SF-62**, lateral of Hyrurn Canal, Utah. Partially overgrown with alfalfa. 
Strip of moss on each side occupied about one-fifth of channel. Bed of-flat fragments 
of rock, up to 3 inches greatest dimension. Coefficient n=0.0393. 
No. 242, SF-24**, canal of Brigham City Electric Light Co., Utah. Well-formed 
canal. Bed of medium-sized unpacked gravel. One-third of water section filled 
with long waving water plants. Coefficient n=0.0424. 
No. 246, SF-46**, Brigham City Canal, Utah. About half full of horsetail moss. 
Such bed as exposed is gravel. Edges overgrown with cress and weeds. Coefficient 
n=0.0499. 
No. 247, SF-53**, lateral of Thatcher Canal, Utah. About two-thirds filled with 
horse-tail moss. Such bed as exposed is sediment. Coefficient n=0.0519. 
No. 248, SF-52**, lateral of Thatcher Canal, Utah. About three-fourths filled with 
moss. Bed as exposed is fine sediment. Coefficient n=0.0529. 
COBBLE-BOTTOM DITCHES. 
No. 250, W-13++, Beasley Ditch, Boulder, Colo. Channel of gravel on bottom 
with cobbles on the sides. On a slight curve with no vegetation in channel.- General 
condition would be classed as good. Coefficient n=0.0220. 
No. 256, SF-47**, Logan and Hyde Park Canal, Utah. Entire channel composed of 
loose coarse gravel up to hen's egg in size. Coefficient n=0.0337. 
No. 257, SF-33**, lateral of Hyrum Canal, Utah. A case where water flows very 
slowly over a rough surface on steep grade. Bed composed of loose cobbles up to 
3-inch size. Coefficient ti=0.0365. 
No. 258, SF-57**, lateral of Smithfield Canal, Utah. Canal on steep grade with bed 
composed of gravel and cobbles. Coefficient n=0.0377. 
No. 260, SF-56** lateral of Smithfield City Canal, Utah. Edges uneven. Bed 
of clean-washed gravel and cobbles. Coefficient n=0.0423. 
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