Resxjlts of Land Observations 



55 



themselves when returning from the field have frequently taken their turn in 

 making the final office computations of each other's observations, the chief burden 

 has been borne by the following members of the Office personnel: J. A. Fleming, 

 magnetician-in-charge, H. W. Fisk and J. P. Ault, magneticians, and J. H. Millsaps 

 and Miss E. L. Beehler, clerks. Owing to the Director's inspection trip of 1911, 

 the preparation of this volume in a very large measure had to be intrusted to 

 Mr. Fleming. Mention should also be made of the efficient services rendered by the 

 chief mechanician, J. A. Widmer, in the construction and repair of instruments. 



Distribution of Stations. 



Some idea of the extent of the land work represented in the Table of Results 

 may be obtained from the synopsis given in Table 5, showing the geographical 

 distribution of the stations occupied during the six years 1905-1910. Data have 

 been secured in each continent, as also on the numerous islands in the Pacific and 

 Atlantic Oceans. It will be seen that the work was chiefly done in the regions of 

 Africa, Asia, and North and South America, and on the islands in the Pacific Ocean 

 where magnetic data are most required. Since 1910 other countries have been 

 surveyed and additional stations have been obtained in some of the previous 



Table ^.^Summary showing the Geographical Distribution of Magnetic Stations, igo^-io. 



