DEPARTMENT OF TERRESTRIAL MAGNETISM. 315 



towards the Yellow River. He arrived at Paotehchow, on the Yellow 

 River, November 15. Here the river was crossed into Shensi Province, 

 and a southerly route followed overland to Sianfu, and thence south- 

 west to Sungpan, Szechwan, and south to Chengtu, arriving at the 

 latter place March 2, 1916. From here the survey was extended 

 westward as far as Yachowfu, the party thence proceeding overland 

 eastward to Chungking, on the Yangtse, via Kiatingfu. From Chung- 

 king it was possible to go by boat down the Yangtse River, thus 

 giving the observer some respite from the continuous travel by cart 

 and mule-back during the preceding 5 months. Hankow was reached 

 May 6, and thence Dr. Edmunds proceeded direct to Canton, via 

 Nanking and Shanghai, arriving at Canton May 19. After attending 

 to various affairs and duties at the Canton Christian College, of which 

 Dr. Edmunds is president, he left for Peking, meeting Mr. Brown 

 there on June 8. 



The balance of June 1916 was spent at Peking, Tientsin, and Peh- 

 taiho attending to correspondence, completion of observation-records, 

 and consideration of plans for the future work by both Dr. Edmunds 

 and Mr. Brown. From Peking Dr. Edmunds proceeded west to the 

 Yellow River, thence south and southeast to Hankow, there closing his 

 work in connection with the general magnetic survey of China about 

 the middle of September 1916 and returning to Canton. During the 

 work as outlined to the west from Peking, Dr. Edmunds was accom- 

 panied by Mr. H. J. Fairburn as interpreter-companion. 



On November 1, 1915, Mr. Brown was at Urga, Mongolia, com- 

 pleting the necessary arrangements for the trip southward towards 

 Lanchowfu. He left Urga on November 11, and traveled by camel 

 caravan approximately in a southwesterly direction to longitude 101° 

 E. and latitude 45° N. Thence he proceeded southward to Liang- 

 chowfu \'ia Tingyiianying. In about longitude 104 ?5 E. and lati- 

 tude 40° N., Mr. Brown heard of a route to Liangchowfu via Chen- 

 fan; accordingly, leaving the road, he struck southwest with his 

 party across country, getting into a desert of rocky hills and high 

 ranges of absolutely smooth sandhills, but finally emerging on the 

 Kalgan-Kanchow road, and reaching Liangchowfu safely on January 

 20, 1916. Thence the trip was continued towards Lanchowfu via 

 Siningfu. From Lanchowfu the valley of the Yellow River was fol- 

 lowed northeast and east to Kweihwating, the party traveling by camel 

 caravan to Paotowchen, May 16, 1916, and thereafter by horse and 

 cart to May 29, when the railroad was reached at Fengchen, and pro- 

 ceeding by rail to Kalgan and thence to Peking, joining Dr. Edmunds 

 at the latter place on June 8, 1916. 



At Peking a program for the rest of the year was arranged as far as 

 the uncertain political conditions permitted. It was decided that 

 Mr. Brown should devote the months of July, August, and September, 



