THE 

 LONDON, EDINBURGH, and DUBLIN 



PHILOSOPHICAL MAGAZINE 



AND 



JOURNAL OP SCIENCE. 



[FIFTH SERIES.] 



OCTOBER 1900. 



XXXVI. Reflexion and Transmission by Condensers of Elec- 

 tric Wares along Wires. By Edwin H. Barton, D.Sc, 

 F.R.S.E., A M.T.E.E., Senior Lecturer in Physics at 

 University College, Nottingham, and Louis Lownds, B.Sc. y 

 1851 Exhibition Science Research, Scholar*. 



Contents. 



Subject. Page 



Introduction 357 



Experimental Arrangements 359 



Theory. 



Preliminary 360 



Intermediate Condenser 361 



Reflexion at Electrometer negligible 366 



Intermediate Resistance 367 



Terminal Condenser 367 



Electrometer-Throw for Single Passage of Wave-Train 3i'9 



Transmitted System 369 



Stationary Waves at Electrometer 371 



Discussion of Interference Phenomena 374 



Reflected System 376 



Detection of Phase-change of Reflected Waves 377 



Experiments 378 



Comparison of Theory and Experiment 3^8 



Introduction. 



1. TN 1892 J. Hitter von Geitler | experimentally detected 



JL the reflexion by a condenser of electric waves along 



wires. He also examined qualitatively the effects of con- 



* Communicated by the Physical Society : read January 26, 1900. 

 t " Inaugural Dissertation," Bonn, January 1893. Wied. Ann. xlix. 

 pp. 184-195 (1893). 



Phil. Mag. S. 5. Vol. 50. No. 305. Oct. 1900. 2 C 



