StroAn on the Tlicr mo-electric Qualities of Metcds. 177 



Table XL— Platinoid Wire. 

 Current from Stretched to Unstretched. 



Temperature difference = 86° C. Total resistance in circuit 

 = 29-89 ohms. 



Total weight 

 in grammes. 



Percentage 

 temporary 

 elongation. 



Percentage 

 permanent 

 elongation. 



Current in 



mikroampere 



per degree 

 with weight on. 



Thermo-electric 

 difference in 

 mikrovolt 

 per degree. 



250 



0-035 





0-003541 



-1058 



500 



-071 





-003979 



0-1190 



750 



0-101 





-004451 



0-1330 



1000 



0-130 



025 



0-005125 



0-1532 



1250 



0-16 



0-03 



-005631 



0-1683 



1500 



0-19 



0-035 



-007285 



0-2177 



Table XII. — German Silver AYire. 



Current from Stretched to Unstretched. 



Temperature difference = 86° C. Total resistance in circuit 

 = 26-85 ohms. 



Total weight 

 in grammes. 



Percentage 

 temporary 

 elongation. 



Percentage 

 permanent 

 elongation. 



Current in 

 mikroampere 



per degree 

 with weight on. 



Thermo-electric 

 difference in 

 mikroTolt 

 per degree. 



250 



.. 





-002529 



-0679 



500 



0-08 





-002360 



-0634 



750 



-105 





0-002474 



-0661 



1000 



0-13 





0-003020 



-0813 



1250 



0-18 



0-051 



-003710 



-0996 



1500 



0-35 



0-162 



-003946 



-1059 



1750 



0-80 



0-588 



0-004552 



-1222 



