392 



Reflexion and Transmission of Electric Waves. 



Fig - . 10.— Interference Systems for Large Condenser and for Bridge of 

 Negligible Resistance. Experimental results iu full lines, theo- 

 retical curves in broken lines. C and c denote curves for Con- 

 denser ; B and b denote curves for Bridge. 



Distances beyond Electrometer to Condenser or Bridge. 



Fig. 11. — Interference System for Medium Condenser. The full line is 

 the Experimental Curve, and the broken line is the Theoretical 

 Curve. 



: :— — r- : ■ :— ■ — :- ; : — ~- 



Distances of Condenser beyond Electrometer. 



Our indebtedness to the works of Oliver Heaviside, ob- 

 viously great, lias been increased by the receipt in MiS. of 

 supplementary elucidations with which Mr. Heaviside has 

 favoured us. This invaluable help we here gratefully 

 acknowledge. 



Univ. Coll. Nottingham, 

 August 1899. 



