on the Corbino Effect. 



699 



Platinum, Gold, Silver, and Nickel. — These disks were all 

 supplied by Messrs. Baker & Co. In each of these metals 

 the effect was of the same sign as in copper. In platinum 

 the effect was too small to do more than determine its sign 

 and its approximate magnitude for the largest magnetic field 

 available. 



Platinn 



m. 









H. 



n. 



H 



n ' 





7056 



3-3 



2139 



Gold. 











H. 



n. 



H 





6642 



309 



214 





5253 



254 



207 







Average 



.. 210 



Silver. 











H. 



n. 



II 

 n 





6901 



77-3 



89 





6236 



740 



84 





5510 



62-9 



86 





4583 



519 



88 





3553 



40-9 



S7 



Nickel. 



Average ... 81 



H. 

 6926 



191 



H 



n 

 310 



5974 



182 



32-8 



4S15 



165 



29-2 



3733 



127 



29-3 



2575 



87 



29-6 



Average ... 30*4 



Zinc. — The disk was cast from "G.p." zinc. 

 was opposite in sign to copper. 



H 



H. 



7468 



60 



n 

 1247 



The effect 



2 Z 2 



