Distribution of Stations 



25 



tained under strenuous field conditions. The results of the comparisons of mag- 

 netic standards made at these observatories will be found in a subsequent section. 

 The Department of Terrestrial Magnetism has continued to furnish instru- 

 mental and other assistance in cooperation with various organizations and in 

 particular with expeditions to polar regions. The Australasian Antarctic Expedi- 

 tion of 1911 to 1913 was supplied with two magnetic outfits and two observers 

 were trained in the observational work. There has thus been obtained the very 

 valuable series of observations in the Victoria Quadrant to be found in the Table 

 of Results. The Department likewise instructed the observer-in-charge of the 

 magnetic work of the Crocker Land Expedition, which set out in 1913 under the 

 auspices of the American Museum of Natural History and the American Geo- 

 graphical Society, with the cooperation of the University of Illinois; two magnet- 

 ometers, a dip circle, and accessories, instrumental constants, and program with 

 directions for proposed work were supplied the expedition. 



Table 5. Summary showing the Geographical Distribution of Magnetic Stations, 1911-1913. 



Countries and 

 subdivisions 



No. of stations 



Pri- 

 mary 



Secon- 

 dary 



C. I.W. 



repeat 

 stations 



Totals 



by 

 country 



No. of stations 



Countries and 

 subdivisions 



Pri- 

 mary 



Secon- 

 dary 



C. I. W. Totals 

 repeat 1 by 

 stations country 



Africa 



Algeria 



Algerian Sahara 



A n g 1 o-E g y p t i a n 



Sudan 



British South and 



Central Africa 



Egj-pt 



Eritrea 



French West Africa . . 



Gambia 



Liberia 



Morocco 



Nigeria 



Portuguese Guinea. 



Rio de Oro 



.Sierra Leone 



Tripolitania 



Tunisia 



207 



22 

 61 



4 

 4 

 1 



51 

 3 

 3 



13 

 1 

 2 

 2 

 5 

 2 

 6 



23 



Asia 



China 



India 



Indo-China 



Siam 



Turkish Empire. 



83 



26 

 6 



28 

 9 

 8 



North America. . . . 



Canada 



Central America. 

 United States'... 



South America . 

 Argentina. . . 



Bolivia 



Brazil 



Chile 



Colombia. . . . 



Ecuador 



Guiana 



Paraguay . . . . 



Peru 



Uruguay . . . . 

 Venezuela. . . 



Islands Atlantic Ocean 



Canary Islands 



Falkland Islands ... 



St. Helena 



West Indies 



Australasia .... 

 Australia .... 

 New Zealand. 



249 

 2 



33 



Europe 



Bulgaria 



Crete 



Great Britain . 



Greece 



Italy 



Malta 



Serbia 



Spain . 



284 



38 



Islands Indian Ocean . 



Ceylon 



Java 



Mavuitius 



Turkish Empire. 



Islands Pacific Ocean . . 



Fiji Islands 



Macquarie Island. . . 

 Philippine Islands. . 

 Samoan Islands. . . . 

 Society Islands 



Antarctic Regions . . . 

 Victoria Quadrant . 



38 

 2 

 8 



20 



12 



52 



27 



1 



1 



8 



12 



60 



11 



36 



30 



Grand total. 



48 



247 



16 



14 



16 



30 



983 



'No account is taken here of the numerous observations at Washington, D. C, in connection with the determinations 

 of constants and the standardization of instruments. 



