36 M. A. F. Sundell on the Electromotive and Thermoelectric 

 Experiment 9. — No. 1. 



Temperature- 

 differences. 



Deflections. 



Conducting-power. 



7-8 

 76 



231 



228 



111-4 

 1120 



Mean ... 7'7 



229-5 



111-7 



Experiment 10. — No. 2. 



6-6 

 5-5 

 6-4 



226-2 

 2220 

 2190 



111 

 111 



Mean ... 65 



222-4 



HI 



The deflections become by reduction : — 

 For No. 1, =426-93 

 „ No. 2, =49319 



Mean . . =46006 



Professor Edlund obtained for the thermoelectric force the 

 value 835-10, the ratio of which to 460*06 equals 1*82: For 

 the iron-copper combination this ratio was only 1*70. The 

 thermoelectric force of the copper-bismuth combination had 

 therefore, like its electromotive force, diminished. 



Alloy No. 1 and Copper. 

 The alloy consisted of 8 parts bismuth and 1 part tin. The 

 experiments to determine the electromotive force gave : — 



Experiment 11. 

 5= tan 18° 24' 



Experiment 12. 

 s= tan 12° 33'. 



Experiment 13. 

 s= tan 7° 32'. 



Deflections. 



Deflections. 



Deflections. 



60-85 

 60-45 

 5860 

 5905 



41-65 

 44-85 

 4300 



29-35 

 29-35 

 29-75 

 29-30 



Mean ...5974 



4317 



29-44 



From these we get /3= 7*178 and 



Mean 



a = 240-56 from Exp. 11, 

 a = 225-79 „ " 12, 

 «=23618 „ 13. 



a = 234-18 



