190 Mr Laws, Experiments on the Thomson Effect, etc. 



Other values found in this way are : 



G"i8V, = — 10,300 ergs per c.G.S. unit current per 1° C. 



-10,600 „ 



ff 30 .. 8 = - 11,700 „ 



-11,900 „ 



<r 36 , 9 = - 12,500 „ 



o- 42 ». 7 = - 13,100 „ 



<r G0 , = - 14,900 „ 



-15,000 „ 



These values are of about the same magnitude as those found 

 for alloy No. 1. 



They also increase more rapidly than the absolute temperature, 

 a straight line drawn through the points cutting the axis at 

 - 80° C. (fig. 2). 



Some experiments at present being made with an alloy con- 

 taining 10 per cent, tin indicate a value for a somewhat smaller 

 than those obtained for the above alloys. The results of further 

 experiments I hope to publish shortly. 



In conclusion I desire to express my best thanks to Prof. J. J. 

 Thomson for his advice and suggestions throughout the course of 



the work. 



