492 
Proceedings of Royal Society of Edinburgh. [sess. 
Plate XIII. 
/ Length : 30*0 \ 
806 Antimony, 696 Cd., 150 Bismuth Breadth: 14*0 >mms. 
V Thickness: 2'14 ) 
Field. 
Trans, effect. 
5,610 
+ -0557 
11,050 
•1446 
14,620 
•2087 
15,640 
•2296 
17,000 
•2398 
I A small increase of re- 
! sistance was observed. 
Pig. 7, diagram II., gives the relations for plates XII. and XIII. 
