MAGNETISM. 



(78) MAGNETIC ELEMENTS AT PLACES ABROAD FOR THE 

 YEAH 1885. 



hi the columns Declination in the foregoing tables, the letter Jl r 

 indicates that the north end of the needle deviates to the west, and 

 the letter./? that it deviates to the east. In the columns Inclination 

 the letter N indicates that the north end of the needly dips, and 

 the letter S that the south end of the needle dips. The values 

 given in the tables are the result of direct observation. If the 

 vertical magnetic force (V) or the tctal magnetic force (T) shoi 1 1 

 be required, they may be calculated, remembering that, calling 

 Inclination = 8, V = H X tan 8, and T = // X sec 5. 



