Thermo-electric Powers of Metals and Alloys. 113 



No. 14. 

 Hadfield's Manganese Steel-Lead Couple. (Non- Magnetic.) 



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. 



E.M.F. 



of Couple 

 | in C.G.S. units. 



Temperature pt° 



in degrees of 



Standard Platinum 



Thermometer. 



-57360 

 -51120 

 -44700 

 -40320 

 -33280 

 -27870 

 -22190 

 -17930 

 -16570 

 - 14290 



- 9040 



- 8730 



- 8060 



- 6840 



- 2410 



+ 1001 

 + 89-9 

 + 79-1 

 + 713 

 + 601 

 + 50-7 

 + 41-2 

 + 33-0 

 + 31-1 

 + 26-2 

 + 179 

 + 164 

 + 152 

 + 12-5 

 + 4-9 



+ 320 

 + 6700 

 + 8060 

 + 15360 

 +23840 

 +32260 

 +40590 

 + 42300 

 + 49850 

 +58960 

 +7U10 

 +80480 

 +88100 

 +92770 

 +95260 



o 



- 0-3 



- 12-4 



- 14-8 



- 28-7 



- 44-9 



- 62-4 



- 78-0 



- 80-8 



- 97-0 

 -116-7 

 -142-7 

 -166-0 

 -1844 

 -I960 

 -203-5 



No. 15. 

 Hadfield's Manganese Steel- Lead -Couple. (Magnetic.) 



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



E.M.F. 



of Couple 

 in C.G-.S. units. 



Temperature pt° 



in degrees of 



StandardPlatinum 



Thermometer. 



E.M.F. 



of Couple 

 i in C.G-.S. units. 



Temperature^ 



in degrees of 



Standard Platinum 



Thermometer. 



-52190 

 -51160 

 -42360 

 -36860 

 -32290 

 -26950 

 -24160 

 -17150 

 -13900 



- 8040 



- 7840 



- 4720 

 + 4240 

 + 9350 

 + 13610 



+ 100°0 

 + 96-9 

 + 82-9 

 + 72-6 

 + 63-3 

 + 53-2 

 + 47-8 

 + 34-3 

 + 27-3 

 + 16'4 

 + 160 

 + 9-4 



- 9-7 



- 207 



- 295 



+ 17570 

 + 22580 

 +27360 

 +30190 

 +36900 

 + 37740 

 +42980 

 +49190 

 +56440 

 +64170 

 +68330 

 +74680 

 +77500 

 +81680 



o 



- 37-2 



- 49 



- 59-6 



- 65-5 



- 80-0 



- 81-1 



- 94-1 

 -108-7 

 -127-0 

 -147 

 -157-2 

 -1740 

 -1820 

 -195-5 



Phil. Mag. S. 5. Yol. 40. No. 242. July 1895. 



