1* :(>.] Magnetic Properties of Alloys of Nickel and Iron. 13 



CUBVB 16. 

 Magnetising Force, 80'3. 



CFKVE 17. 

 73 per cent. Mickel. 



nary temperature. It is curious to remark that the induction for 

 considerable forces is greater than in the steel with 33 per cent, of 

 nickel, and that it is greater than for a mechanical mixture of iron 

 and nickel in the proportions of the analysis, however the particles 

 might be arranged in relation to each other. 



The critical temperature of the material is 600 C. ; it shows no 

 material difference between the critical temperatures for increasing 

 aud diminishing temperatures. 



