312 CARNEGIE INSTITUTION OF WASHINGTON. 



progress in the completion of the various buildings. The photographic 

 instruments for the magnetic work were installed and it was expected 

 that continuous magnetic observations would be begun the latter part 

 of the year. (For details and account of some preliminary observa- 

 tions, see page 330.) 



Apia Observatory, Samoa. — After various negotiations, the New Zea- 

 land Government decided to continue at its expense the magnetic and 

 seismic work of the Apia Observatory, which was established in 1902 

 under the auspices of the Gottingen Gesellschaft der Wissenschaften 

 and of the German Government. The activities of the observatory 

 were maintained in full throughout the Great War under the direction 

 of the German observer-in-charge. Dr. G. Angenheister, who returned 

 to his native country in July. Mr. C. J. Westland, of New Zealand, 

 is the present observer-in-charge. The Apia Observatory was origi- 

 nally established with the view of cooperation with the German 

 Antarctic Expedition of 1902-1904; the German Government continued 

 it later and thus cooperated with the Department of Terrestrial Mag- 

 netism in the Pacific Ocean work. The magnetic data obtained at the 

 Apia Observatory are required for the satisfactory reduction of our 

 ocean magnetic work. Similarly, continuous observations in atmos- 

 pheric electricity at the Apia Observatory are desirable in connection 

 with the reduction of our ocean electric work. Unfortunately, however, 

 the New Zealand Government was unable to provide for the expense 

 of maintenance of the atmospheric-electric work after Dr. Angen- 

 heister's departure. In order to maintain the continuity of this work 

 the Department, in cooperation with the New Zealand Government, 

 has stationed Dr. H. M. W. Edmonds at Apia for the purpose of con- 

 tinuing, as well as possible with the available means, the atmospheric- 

 electric observations, pending other arrangements. The New Zealand 

 Government has courteously furnished Dr. Edmonds with living 

 quarters. As stated on page 326, Dr. Edmonds, while stationed at 

 Apia, also has charge of the Department's magnetic-survey work of 

 the Pacific Islands. 



MacMillan Baffin Land Expedition. — In cooperation with this expe- 

 dition, instruments, plans, and directions were furnished for temporary 

 observatory work in the polar regions, 1921 to 1922, and instruction 

 was given to the observers. The observations to be undertaken, if 

 conditions permit, will pertain to terrestrial magnetism, atmospheric 

 electricity, and polar lights (see pp. 327 and 334). 



Washington, District of Columbia. — Numerous comparisons and 

 standardizations of magnetic instruments have been made in the 

 course of the year in the Standardizing Magnetic Observatory. The 

 most interesting of these instrumental comparisons have been those 

 between the Department's standard magnetometer and its sine 

 galvanometer, with which the horizontal component of the intensity of 



