Dr. J. Hopkiiison. 



[May 1, 



Table II. 



Magnetising 

 force. 



0-06 



0-12 



0-25 



0-52 



1-05 



2-10 



4-6 



8-7 



16-6 



38-5 

 266-5 



Induction. 

 14 

 29 



60 



127 



294 



760 



3,068 



8,786 



13,641 



16,702 



21,697 



CUEVB 6. 



The material appears to be capable of considerably higher mag- 

 netisation than wrought iron. In Curve 7 is shown the relation of 

 induction and temperature for two forces, 26'5 and 0'5, the results 

 being obtained on two different days, to the same scale of abscissae 

 but different scales of ordinates. These curves show the same 

 features as the alloy B, but at a rather lower temperature. 



D. This sample contains 22 per cent, of nickel. It was not 

 thoroughly tested, as the supply of C0 2 which happened to be avail- 

 able was insufficient. Its magnetic properties, however, were similar 

 to the next sample. 



