408 THE THEORY OF TERRESTRIAL MAGNETISM. 



-_. , _ -_ T ' 



153 795 , 275 



- +429* 







77 119 245 7 



-^- T3 ^ +r43 ^- 3> - 



332 238 , 812 623 



- - 



When m = 2, X 2 = - 2 ( 1 - /*")* (/*) = (!- fi')* ( ~ 2 ^)' 



5 I 3 



3 



115 375 15 







266 140 294 



376 , 4116 952 s 742 \ 

 /x'- ^ + ^- 



