24G 



MR J. C. BEATTIE ON THE 



appears in different magnitude ; in some it is relatively so small, compared to the 

 Hall effect, that it does not, with the fields at disposal, cause the total effect to 

 decrease numerically. In others, again, it produces this ; and in a third class it 



Plate VIII. 



Length, . 

 Breadth, 

 Thickness, 



24-0 | 

 12-0 mm. 



1-1365 ) 



n = 1-3967 

 Temp. 15° C. 



c 1 (Ari)i + c 2 (An)l = -E. 



Field. 



Trans. Effect. 



c 



An 





An 



J~An 



y 



c i H 



S 



c i 



C 2 



1,340 



-•10221 



•0320 



•1780 



... 





... 



... 



... 



... 



3,350 



-•19552 



•1253 



•3539 



•0452 



•2126 



... 



... 



... 



... 



5,030 



•23712 



•2029 



•4500 



•0712 



•2668 



-•58 



+ •27 



-•96 



1-2 



6,700 



- -28526 



•3244 



•5697 



•1135 



•3369 



-•58 



+ •25 



-•96 



11 



11,300 



- -33459 



•6067 



•7789 



•1943 



•4409 



-•58 



+ •25 



-•96 



1-1 



12,840 



- -33879 



•7199 



•8489 







-•58 



+ •25 



... 





14,750 



-•33456 



•7803 



•8833 



•2416 



•4914 



-•58 



+ •26 



-•96 



1-2 



17,780 



-•3147 



•9709 



•9853 



•2699 



•5195 



-•57 



+ •26 



-•98 



1-4 













Average 



-•58 



+ •26 



-•97 



1-2 



Plate Ia. — Arrangement e. 



Length, 



Breadth, 



Thickness, 



50 



28-25 : nun 

 1-305J 



» I 



n = 1-056 

 Temp. 15° C. 











c^AnY' + c^AnYt-- 



= -E. 



Field. 



Trans. Effect. 



An 



JAn 



<h 



C 2 



8,500 



- -2902 



•2529 



•5029 



... 



... 



11,740 



- -2900 



•3262 



•5712 



-•83 



+ •98 



12,840 



-•2898 



•3274 



•5722 



-•81 



+ •94 



14,170 



-•2739 



•4121 



•6419 



-•83 



+ •95 



15,600 



- -2621 



•4321 



•6573 



-•80 



+ •99 



17,780 



- -2503 



•4816 



•6939 



-•82 



+ •95 









Average 



-•82 



+ •96 



