358 Mr. G. M. Whipple on the Determination of the [May 2, 



Experiment 1. In this experiment only the potential of the positive 

 pole was measured. 



JNo. or 



Uenection 



1\ O. OI 



JJeilection 



ri O. OI 



Deflection 



1>0. OI 



-Deflection 



Cells. 



in inches. 



CeUs. 



in inches. 



CeUs. 



in inches. 



CeUs. 



in inches. 







o-ooo 



200 



1-762 



440 



3 300 



680 



4-275 



20 



0-200 



240 



2 -050 



480 



3-487 



720 



4-362 



40 



0-400 



280 



2-375 



520 



3 -637 



760 



4-425 



80 



0-900 



320 



2-650 



560 



3-812 



800 



4-500 



120 



1-112 



360 



2-887 



600 



3-950 







160 



1-450 



400 



3-100 



640 



4 -087 







In the next experiment the positive deflections were read for poten- 

 tials increasing by hundreds up to 800 cells, and the negative for 

 potentials increasing by twenties up to 200 cells. 



Experiment 2. 



Positive. 



Negative. 



No. of 



Deflection 



No. of 



Deflection 



No. of 



Deflection 



No. of 



Deflection 



CeUs. 



in inches. 



CeUs. 



in inches. 



Cells. 



in inches. 



Cells. 



in inches. 







o-ooo 



600 



3 725 







o-ooo 



120 



1 -200 



100 



0-900 



700 



3-951 



20 



125 



140 



1-450 



200 



1-701 



800 



4-051 



40 



0-287 



160 



1-575 



300 



2-387 







60 



0-525 



180 



1 -850 



400 



2-951 







80 



725 



200 



2-100 



500 



3-401 







100 



0-975 







The negative deflections in the next experiment were obtained for 

 potentials diminishing from 200 cells. The positive again increased 

 by hundreds. 



Experiment 3. 



Positive. 



Negative. 



No. of 



Deflection 



No. of 



Deflection 



No. of 



Deflection 



No. of 



Deflection 



CeUs. 



in inches. 



CeUs. 



in inches. 



CeUs. 



in inches. 



CeUs. 



in inches. 







o-ooo 



600 



3 "750 



200 



2-250 



80 



825 



100 



0-950 



700 



3 975 



180 



2-000 



60 



612 



200 



1-750 



800 



4-100 



160 



1-725 



40 



0-400 



300 



2-400 







140 



1-512 



20 



0-200 



400 



2 -950 







120 



1-287 







o-ooo 



500 



3-450 







100 



1-050 







The scale was then dismounted, and a frame substituted for it con- 



