32 Hydraulics of the Mississippi River. 
differences found being all very slight. 
n these cases, the outstanding force of wind, after balancing 
opposing forces, was never much above l. Velocity observa- 
tions had, moreover, been found to be impracticable, with a wind 
above 4. The results of the investigation, so far, would hardly 
therefore justify the assumption that the movement of the axis 1s 
equation) verifies the general correctness of the procedure; the 
approximate discharge, a mean depth or radius of the river, 3 — 
five feet bel 
or recorded 
this discharge may be taken as proportional to the m 
