DEPARTMENT OF TERRESTRIAL MAGNETISM. 279 



2. Africa and Asia. — Observer H. E. Sawyer, returning from his extensive 



work in Central Africa, as described in previous reports, secured 

 magnetic observations during November and December 1918 at 

 various stations, some of which were repeat stations, where the 

 Department had previously made observations. 



Early in January 1919 magnetic observations were received from 

 Capt. R. Amundsen, made at 3 stations along the Siberian coast 

 with the magnetic instruments loaned the Amundsen Polar Expedi- 

 tion by the Department (see Annual Report for 1918, p. 240). 

 These stations were at Vaigach (latitude 69? 7 N., longitude 60? 2 

 E.), occupied August 12-13, 1918; Khabarowa (latitude 69?7 N., 

 longitude 60?4 E.), occupied August 15, 1918; and Port Dickson 

 (latitude 73?5 N., longitude 81° E.), occupied September 2-3, 

 1918. The second station was probably close to the 1893 station 

 of the Norwegian North Polar Expedition. 



Professor Boris Weinberg, of the University of Tomsk, Siberia, 

 was loaned a land dip-circle to complete the magnetic outfit with 

 which he hopes to secure in 1919 some cooperative observations 

 in Siberia. 



3. Australia. — (See observatory work at Watheroo, p. 291.) Coopera- 



tion was received in the continuation of the magnetic survey of 

 South Austraha from Gcrvernment Astronomer G. F. Dodwell, 

 Adelaide Observatory, and Professor Kerr Grant, University of 

 Adelaide. These investigators are using a magnetometer, as well 

 as directions and forms, supphed by the Department. Their 

 work, as shown by the cahiers of observations received at Wash- 

 ington, is carefully done and forms a valuable contribution. 



4. North America. — Magnetician H. W. Fisk and Observers H. R. 



Grummann and R. R. Mills carried out a series of magnetic obser- 

 vations at 13 stations along the lower shores of Chesapeake Bay. 

 The prime purpose of this work was in connection with the reduction 

 of the past and future "swing observations" of the Carnegie in 

 the Chesapeake, off the Patuxent River. For observational and 

 instrumental work at Washington, see pages 293-294. 



5. South America. — Observer A. Sterling, after discharge from 



the American Army, was assigned to field work in Chile and 

 Argentina. He arrived at Valparaiso on March 19, 1919, and 

 after repeat observations at Santiago and Puerto Montt, reached 

 Punta Arenas, Chile, on April 6, making observations here as well 

 as en route. Thence he proceeded to occupy stations chiefly 

 along the eastern coast of Argentina. At a number of his stations, 

 magnetic observations had been made previously under the 

 auspices of the Meteorological Service of Argentina. He occupied 

 a former station of the Department at Colon, Uruguay, and also 

 obtained comparisons with the magnetic standards at the Vas- 

 souras Observatory, Brazil. 



For an account of the work of Dr. H. M. W. Edmonds's party 

 in Peru, see Observatory Work, page 291, and EcHpse Work, page 

 290. 



Observer D. M. Wise's party, besides carrying out the full 

 program of ecHpse work at Sobral, Brazil, described on page 290, 

 made magnetic observations at 11 stations in eastern Brazil and 

 at Barbados; at 4 of these stations the Department had made 

 observations previously. 



