DEPARTMENT OF TERRESTRIAL MAGNETISM. 257 



about 15 selected stations of the Magnetic Survey of Egypt. After 

 comparing his naagnetic instruments with those of the observatory at 

 Helwan, Mr. Sawyer began his homeward voyage, by way of the 

 Pacific, occupying repeat stations of the Department as opportunity 

 offered. 



ASIA. 



In the progress of the expedition through the provinces of south- 

 eastern China, which started from Canton in August 1917, Observer 

 Frederick Brown arrived at Hangchow, Chekiang, on October 27, and 

 reoccupied the C. I. W. station of 1906. From Hangchow the journey 

 was made to Shanghai by rail, and thence to Lukiapang, the location 

 of the magnetic branch of the Zikawei Observatory, where a complete 

 series of intercomparisons was made between the instruments used 

 by Mr. Brown and those of the Observatory. After these intercom- 

 parisons, he observed at the C. I. W. station at Ningpo and proceeded 

 by steamer to Wenchow, Chekiang, which was occupied on November 

 10. There being no direct steamer line from Wenchow southward, 

 Mr. Brown decided to make the inland trip partly by canal and partly 

 overland on foot, being able by this method to observe at 5 inter- 

 mediate points between Wenchow and Foochow, Fukien, where he 

 arrived on November 24 and reoccupied the C. I. W. station of 1906. 



Continuing southward, observations were made by Mr. Brown at 

 the repeat stations at Amoy and Swatow and at two other inter- 

 mediate points en route to Hongkong, which was reached on December 

 9, 1917. About 3,000 miles was covered on this trip and 37 stations 

 were occupied, 7 of which had been previously occupied by observers 

 of the Department. At the conclusion of this work, Mr. Brown 

 secured a comparison at Canton between the instruments used by him 

 and an outfit belonging to the Department held in reserve at Canton. 

 In this work he was assisted by Dr. C. K. Edmunds, whose duties as 

 president of Canton Christian College had not permitted him to take 

 any extended part in the survey work of the year. Mr. Brown then 

 proceeded to Washington, where he arrived about the first of February 

 1918. 



NORTH AMERICA. 



Observations were made on June 8, 1918, the day of the total 

 eclipse of the sun, by parties in the United States, as follows: By the 

 Director, assisted by E. W. Elder and R. Sutton at Corona, at an alti- 

 tude of about 11,800 feet, in the Colorado Rocky Mountains; by a 

 party in charge of S. J. Mauchly, assisted by D. M. Wise, A. Thom- 

 son, and M. B. Smith, at Lakin, Kansas; by H. W. Fisk, assisted by 

 C. C. Ennis, at Goldendale, Washington; by C. W. Hewlett at Brew- 

 ton, Alabama, in the belt of totahty ; by W. J. Peters at Lake Moraine, 

 near Pikes Peak, Colorado; and by C. R. Duvall, at Washington, out- 

 side the path of totality. In addition, observations were made by G. 



