

Thermo-electric Powers of Metals ami Alloys. 11 1 



No. 10. 

 Tin-Lead Couple. 



One junction at 0° C. ; the other at pt°. 



E.M.F. 



of Couple 

 in C.G.S. units. 



Temperature pt° 



in degrees of 



Standard Platinum 



Thermometer. 



+ 100°1 

 + 89-9 

 + 79-4 

 + 701 

 + 60-7 

 + 505 

 + 41-2 

 + 33-6 

 + 33- 1 

 + 25-2 

 + 19-6 

 + 16-2 

 + 15-2 

 + 12-4 

 + 61 



E.M.F. 



of Couple 

 in C.Gr.S. units. 



Temperature pt° 

 in degrees of 



Standard Platinum 

 Thermometer. 



+570 

 +460 

 +410- 

 +360 

 +340 

 +340 

 +-270 

 + 190 

 +200 

 + 140 

 + 150 

 + 90 

 + 80 

 + 50 

 + 70 







- 80 



- 50 

 -140 

 -150 

 -240 

 -290 

 -220 

 -260 

 -360 

 -340 

 -440 

 -430 

 -490 

 -440 



o 



- 2-0 



- 11-7 



- 16-7 



- 31-6 



- 48-7 



- 64-2 



- 80-8 



- 81-8 

 -100-9 

 -124-2 

 -147-8 

 -168-6 

 -185-8 

 -1964 

 -203-8 



No. 11. 

 Iron -Lead Couple. 



One junction at 0° C. ; the other at pt°. 



EM.F. 



Temperature pt° 



E.M.F. 



Temperature pt° 



of Couple 

 in C.Gr.S. units. 



in degrees of 



Standard Platinum 



Thermometer. 



of Couple 

 in CCS. units. 



in degrees of 



Standard Platinum 



Thermometer. 



+145360 



+ 1001 



- 2840 



o 



- 11 



+132110 



+ 899 



- 20030 



- 121 



+117540 



+ 79-2 



- 26240 



- 159 



+ 104830 



+ 69-9 



- 4^090 



- 304 



+ 91940 



+ 60-4 



- 76050 



- 46 7 



+ 77150 



+ 50-8 



-104190 



- 640 



+ 61930 



+ 41-3 



-131940 



- 80-0 



+ 50780 



+ 33- 1 



-134250 



- 809 



+ 47990 



+ 32-5 



-163590 



- 998 



+ 39180 



+ 259 



-201010 



-122-5 



+ 27680 



+ 19-0 



-235730 



-1461 



+ 24380 



+ 16-3 



-264340 



-1681 



+ 23300 



+ 15-2 



-286090 



-185-7 



+ 20870 



+ 12-4 



-298860 



-196-3 



+ 7120 



+ 5-5 



-305400 



-203-9 



