2. s 8 



Jl, XAUAOKA 



dIisltvc'i] Miliu's of the intensity ,\ tor .smwcssivf (iO" (jf twist ;ii'e 

 <'i\eii in tlie ai»ix'nili.\. Jii the fiu'ures .siiouinii' tlic chiiiii'es of majîneti- 

 zatioii, the absci.ssiv ilenote the aiuount of twi.st, while tlie ordinutes 

 represent the intensity of niugnetization „""l. 



The iirst experiment was made with a nickel wire iU ems long, 

 and 1 mm. thick. Ilie wire was deprived of its initial magnetism by 

 heating it red hor. It was then placed vertically and so came under 

 the inÜiience of a magnetic field of .34 C. G. S. units. With a steady 

 load of .64 kgs. the wire was subjected t(j repeated twisting and un- 

 twisting. After G such operations, the changes became nearly cyclic, 

 and the following reatlings of deflections were taken at tlie 7th cycle. 



