1902.] on the Electronic Theory of Electricity. 181 



between such various departments of physical phenomena, is onb 

 which must continue to attract investigators. Physical inquirers 

 are at present, however, groping for guiding facts in this difficult 

 field of investigation, but we have confidence that mathematical and 

 experimental research will in due time brine the reward of greater 

 light. 



[J. A. F.] 



