62 



KENNELLY-SANBORN— INFLUENCE OF 



[April 24, 



to the test-wire ; i. e., the distance of the test-wire from the motor- 

 shaft axis was 58.5 cm. (23") ; and the radius of the pressure tank 

 was 76 cm. (30"), leaving a clearance between the rotating wire and 

 the tank wall of 17.5 cm. (7"). A larger pressure tank, allowing 



Fig. S. Elevation and Plan of Pressure Tank showing position occupied by 



the Test- Wire. 



more space and clearance for the revolving test-wire, would have 

 been preferable; but the arrangement was the best that could be 

 made with the apparatus at hand. The results obtained at any 



