rg5 TABLE 737 {continued) 



MEAN ANNUAL VALUES OF MAGNETIC ELEMENTS AT OBSERVATORIES 



v, w Because of electric car disturbances, superseded in January. 1913, by Kakioka and in 1908 by Lukiapang, 

 respectively. * New constants determined in 1914. used thereafter, gave for that year smaller values in H 

 by 3i7and in Zby 317 than those based on the constants previously used, y Observations discontinued Apr. 26, 

 1915, 'New site of Hong Kong observatory. Corrections to reduce Au Tau values to the Hong Kong series 

 from 1884 are +9'. 8 in D (i.e., west D is numerically less), —2'. 5 in /, —1597 in H, — i9i7inZ. aa Means, 

 10 months, March to December. bb Original observing hut replaced in 1921 ; values from 1925 reduced to basis 

 of original hut; superseded by Au Tau in 1927. 



Smithsonian Tables 



