Air in Closed Vessels and its Causes. 



.>,).> 



In tbi< experiment, and usually throughout the research, 

 rhe vessel was charged positively, but the Held was occasion- 

 ally varied in sign. In no case did tin 

 results. 



Vessel Screened. 



change affect the 



Zero. 



Beading. Deflexion. 



Sensitiveness. 



Leak. 



30-5 



42-0 



11-5 



27-.") 



0418 



29-0 



410 



120 



27-5 



436 



28-0 



410 



130 



27-75 



0-468 



20 



390 



io-o 



270 



0-370 



290 



40(1 



11-0 



26-0 



0-423 



24*5 



33*5 



9-0 



25-75 



Mean Leak... 



0350 



0-416 





Vessel Unscreened. 





TOO 



840 140 



275 



0-509 



7(IM 



81-5 11-5 



20 75 



0-430 



660 



790 130 



2575 



0-504 



65-0 



795 14-5 



25-5 



0490 



680 



80-5 12-5 



25-5 



0-490 



680 



90-5 12-5 



26-0 



0-481 







Mean Leak . . . 



0-497 





Vessel Screened. 





:>;>•:> 



69-5 



140 



32-0 



0-438 



56-1 • 



680 



12-0 



31-5 



0-381 



545 



68-5 



140 



31-0 



0-452 



54*5 





14-0 



30-5 



0459 



580 



710 



130 



32 



0419 



590 



710 



12-0 



32-5 

 Mean Leak ... 



0-369 



0-419 





Vessel Unscreened. 





520 



66 



140 



31 1 50 



0-459 



515 



65 5 



140 



30-25 



0-462 



5i'5 



670 



155 



3000 



0-516 



:,i h i 



640 



130 



3000 



0433 



:.. »■:, 





125 



29 75 



0420 



51*5 



65*5 



Ho 



2950 



474 





Mean Leak ... 



0-461 



Summary <»i' Results. 



I Unscreened. V ssel Screeued. 



D-181 0*416 



<>•; 0-419 



0461 — 



Mean .. .<>•!* Mean ... 0'42 



action of Ionization due to screen, 12 per cent. 



1 2 



