74 Mr. E H. Barton. Electrical Interference Phenomena 



Table I. 





undulating curve whose ordinates lay between the limits 0'51 andO'36. 

 Thus the extreme values of the ordinates differed from their mean 

 value by about 17| per cent, of the latter. The electrometer throws, 

 however, were now reduced to about one-third of their former value. 

 This was owing to the continuation of the wires so far beyond the 

 electrometer instead of their termination by a bridge distant only a, 

 quarter wave-length from it. It seemed, therefore, that the iron wires 

 did more harm than good, and they were accordingly abandoned in 

 favour of the arrangement described in the next experiment. 



