Tables 124, 125. 



TERRESTRIAL MAGNETISM. 

 TABLE 124. — Horizontal Intensity. 



This table gives, for the epoch Jamiai7 i, iSSj, the horizontal intensity, H, corresponding to the longitudes in the top 

 line and the latitudes in the body of the table. At epoch iS8s the force was iucreasiiig for positions above the 

 division line, and was di;creasing for positions below the division line. 



TABLE 125. — Secular Variation ol the Horizontal Intensity. 



Values of the horizontal intensity, H , in British units, for stations given in first column and epochs given in top line. 

 Tlie values for 1890 and 1895 have been extrapolated frurn the values up to 1885. The epochs are for January i of 

 the different years given. 



Smithsonian Tables. 



112 



I 



