Resistance of Metals and Alloys. 



285 



§9. 



III. Palladium. 



This palladium was prepared for us by Mr. George Matthey 

 with the greatest care, and was found to be of a high degree 

 of purity. 



Length = 100 centim. Mean diameter = 0*024478 centim. 

 Mean sectional area =0*00047061 sq. centim. 



Lo ^ [ 10 lX? n ] =3-6726579=log 10 *. 



K*. 



*°. 



Pfi 



pt. 



3-6173 



194-2 



17023 



191-2 



3-2069 



137-2 



15092 



136-1 



2-9304 



98-5 



13791 



98-55 



2-6405 



601 



12426 



60-60 



2-3176 



18-35 



10907 



18-75 



2-3115 



18-05 



10878 



18-45 



2-3106 



17-2 



10874 



1755 



2-1786 



0-6 



10253 



0-6 



1-8259 





8593 



- 43 



1-5226 





7166 



- 81-9 



0-5913 





2783 



-197-1 



Volume-specific resistance at 0° C. . 

 Mean temperature-coefficient between 



0°and 100° ='00354 



10219 C.G.S.units. 



10. 



IV. Silver 



Several samples of silver wire were obtained and ex- 

 amined. The purest we were able to obtain was a sample 

 sent to us by Mr. J. W. Swan, prepared by him by the 

 electrolysis of silver nitrate, and drawn into wire directly 

 from the deposit without having been melted. It was an- 

 nealed in a non-oxidizing atmosphere of C0 2 . 



Length = 150 centim. Mean diameter = 0*025550 centim. 

 Mean sectional area = 0*00051272 sq. centim. 



Lc-g 1() r 



10 9 section"] 

 length J 



= 3*5337876 = log 10 &. 



