192 



LORD KELVJN, DR. M, MACLEAN, AND MR. A. GALT, ON THE 



Fig. 1. 



A 



The deflection obtained was 122 scale divisions. The capacity of the condenser is 

 approximately 



i-n- x 1-45 "" 1-45 



-" = , r C.G.8. electrostatic unit. 



