

5 



S 









-ISl- 



o 



So 



ill 





rjTl 





DEPTH IN FATHOMS 



o o o o o 

 o o o o o o 



1 T T 7 7 T 7 



l!ar 



s/S 







l^ 













1 















nil 



z 







z 





1 



i 



1^ 



i 





4 



\ 



1 







z 



/ 







z 



pn 





1 



» 



l^ 





- 

 500- 

 000- 

 500- 

 000- 

 500- 

 000- 



; 



is 



? 







DEI»TH IN FATHOMS 



y 



^ in 



^ 'I 





V-} 



m 



n <^ I 



z ,„1 



< J_ 



-(^ 



^7^/-V -[^ 



TOTAL MAGNETIC INTENSITY IN GAMMAS DEPTH IN FATHOMS 



"T~T" 



TT"! — ' — ' — ^k 



O r» <-i n o o 



TOTAL MAGNETIC INTENSITY IN GAA,*MAS DEPTH IN FATHO/KIS 



69 



