Comparisons of Magnetic Standards, 1905-14 



247 



The times of beginning anil ending, as given in the tables, are the means for the two 

 observers. 



Table 17 D. Results nf Declination Comparisons at the Pilar Oliserratory, WIS. 



'All values are referred to station B; B = No. 1 r.4; B = C+0'.4. 

 Table 17 E. Results of Horizontnl-Intensilij Comparisons at the Pilar Observatory, 1913. 



'All values are referred to station B; B = C 2.87; B = No. 1 19.27. 



AssembUng the various results and referring them to I. M. S. (see p. 273), we obtain: 

 (17) I. M. S.-Pilar (Dover magnetometer No. 138)= +0'.4 (1911). 

 (17a) I. M. S.-Pilar (Dover magnetometer No. 138)= -0.00101// (191 1). 

 (17i) I. M. S.-Pilar (Dip circle No. 216 and inductor No. 3)= +0'.3 (1911). 

 (17c) I. M. S.-Pilar (Dover magnetometer No. 175)= -0'.3 (1913). 

 (I7</) I. M. S.-Pilar (Dover magnetometer No. 175)= -0.00028// (1913). 





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