408 



Mr. W. B. Burnie on the Titer mo- electric 



100 



in previous experiments and melted into the metals. The 

 two standard wires and the three free wires from the tem- 

 perature-determining thermo-element were led to a paraffin 

 switch-block, P 2 , which was connected to an arrangement of 



Fig. 8.— Copper- Bismuth Thermo-element. 



H 40 





' / 





. ■ • yA " ' 





/. S' 



/ 





■f 3 



i 



i 





i 



_ 



350 

 Temperature 0. 



4£0 



a galvanometer, G, a standard cell, S, a key, K, a bridge 

 battery, B 2 , resistances, W 4 and W 3 , switch-blocks, P x and P 3 , 

 and a metre bridge, as shown in fig. 5, for measuring the 

 E.M.F.'s. 



