Elasticity of Ferromagnetic Substances by Magnetization. 43 



Nickel. 

 (i.) Pure Nickel. PI. I. figs. 1 & 2. 



The change o£ length -r by magnetization, for different 

 & ft j j ft 



tensions T and external magnetic fields H are given in the 

 following table and fig. 1. 



Table 1. 



t = 9°S. 



T = 154C 



> gr./mm. 2 



T = 22S3 gr./mm. 2 



T=r3021 gr./mm. 2 



II. 



cV XlO*. 



II. 



<y 7 X10". 



H. c ixl0 G . 





t 





1 



1 



2-1 



+ 02 



4-1 







- 0-18 



43 



- o-ii 



5-8 



- 059 



7 '7 



- 0-97 



8-5 



- 073 



9-4 



- 209 



11-3 



- 226 



126 



- 1-67 



140 



- 437 



15-6 



- 3-69 



166 



- 2-81 



242 



-11-94 



244 



- 7-40 



24-4 



- 5-27 



33-4 



-20-28 



33-0 



-1201 



32-8 



- 8-25 



491 



- 28-25 



4'.) -8 



-23-96 



48-4 



-1611 



74-2 



-33-1 



746 



-32-2 



72-7 



-2896 



94-3 



-35-7 



93-7 



- 35 4 



93-4 



-339 



1432 



-39-7 



142-3 



-401 



142-2 



-39-7 



203 



-42-5 



201 



-43-4 



201 -43-5 



276 



-441 



276 



— 45-5 



275 -46-0 



322 



-44-6 



322 



-460 



322 -46-8 



389 



-44-9 



388 



-4f>-5 



388 -47-3 



1 



T=3762 



gr. mm. 2 



T = 449t 



gr./mm. 2 



T = 52J0 gr./mm. 2 



II. 



!' xio' ; . 



II. 



*L xio 6 . 



H. 



s l Xl0 G . 





i 





1 





1 



41 



- 007 



4-3 



- 004 



3-8 



— 000 



7-8 



- 042 



8-8 



- 0-38 



8-5 



- 0-18 



125 



- 1-30 



158 



- 1-45 



13-6 



- 0-64 



168 



- 2-28 



24-4 



- 3-22 



180 



- 1-27 



24-4 



- 4-27 



33-4 



- 5-18 



24-2 



- 2-37 



336 



- 6 76 



408 



- 6-98 



345 



- 4-33 



49-6 



-12-23 



49-8 



- 9-39 



49-6 



— 7 -65 



73-6 



-24-23 



73-8 



— It < i 



73-8 



-13-84 



93-6 



-31-7 



931 



- 2(5-8 



931 



-21-40 



142-2 



-39-3 



142 3 



— 37'5 



142-3 



-35-2 



201 



-43-8 



201 



-42 9 



203 



-41-6 



275 



-46-8 



275 



-46-5 



276 



-45-7 



321 



-47-8 



321 



-47-7 



323 



-47-2 



388 



-48-5 



387 



-48-7 



390 



-48-4 



