Resistance of Metals and Alloys. 



293 



rather irregular in section no less than sixty measurements 

 of diameter were made in a length of 300 centimetres. 



Length=282 centim. Mean diameter = 0*061496 centim. 



Mean sectional area = 0*0029701 sq. centim. 



L °g,[ 12 SP]=^225326=lo gl0 X.. 



-Rt. 



t°. 



Pt- 



pt. 



Eemarks. 



0-7265 



142-2 



7423 



1409 





0-5859 



98-5 



5986 



98-55 





0-5261 



600 



5375 



60-55 





0-4598 



18-40 



4698 



18-80 





0-4549 



17-70 



4647 



17-7 





0-4378 



13-8 



4611 



14-10 





0-4268 



0-55 



4360 



0-55 





0-3603 





3681 



- 40-1 





0-3430 





3613 



- 43-3 





0-2907 





2970 



- 81-9 





00980 





1001 



-197-1 



Taken in liquid oxygen. 



Volume-specific resistance at 0° C. . 4355 C.G.S. units. 

 Mean temperature-coefficient between 



0°C. and 100° C -00381 



§ 17. XI. Zinc. 



This zinc was carefully prepared for us by Mr. G. Matthey, 

 and analysis showed that it contained no impurity except 

 perhaps the very faintest trace of iron. 



Length = 100 centim. Mean diameter = 0*025910 centim. 



Mean sectional area = 0*00052725 sq. centim. 



Rt. 



1 

 to. 



pt. 



pt. 



1-9678 



191-5 



10375-2 



188-6 



1-7663 



148-8 



9312-8 



147-3 



1-4995 



92-45 



7906 



9260 



1-3157 



51-65 



6937 



52-25 



1-1776 



18-80 



6209 



19-20 



1-1480 



15-55 



6052-8 



15-85 



1-1452 



1275 



6038 



1305 



1-0951 



1-05 



5774 



1-05 



0-9086 





4790-6 



- 44-3 



0-7484 





3346 



- 81-9 



0-2844 





1499-5 



-197-1 



Volume-specific resistance at 0° C. =5751 C.G.S. units. 

 Mean temperature-coefficient between 



0°C. and 100° C =-00406. 



