TERRESTRIAL MAGNETISAI — BAUER. 24I 



With the latter outfit he again took up field work in June, this time along 

 the coast from Swatow northward. Up to August 12 he had occupied the 

 following stations: Honglok, Swatow, Chau-chu-fu, Amoy, T'suan Chau, 

 Fuchau, An Tau, Yangchau, Chinkiang, Suchau, and Shanghai (Zi-ka-wei 

 Observatory). In the execution of this work he was ver\- materially assisted 

 by the American vice-consul at Kuchau, the Hon. E. Carleton Baker, to 

 whose aid and advice much of the success of the trip is due. 



Dr. Edmunds during the time remaining at his disposal for field work 

 has been able to occupy, through the extension of the privilege of passage 

 on the revenue cutters by courtesy of the inspector of general customs, Sir 

 Robert Hart, and the coast inspector. Captain T. J. Eldridge, eleven stations 

 distributed in the neighborhood of the lights in the Chusan Archipelago and 

 in the neighborhood of Cheefoo, Tientsin, and Naichwang. In securing this 

 valuable aid he has been ably assisted by the American minister at Peking. 



South Pacific Islands. — Mr. G. Heimbrod, magnetic observer, continued at 

 the German ^Magnetic Observatory under the direction of Dr. Franz Linke, at 

 Apia, Samoan Islands, until March 17. Up to this time he was engaged in 

 the determination of the various methods of observation and constants of 

 the magnetometer and dip circle, courteously loaned to the Department by 

 the observatory. He also familiarized himself with observatory work. 



Since leaving Apia, Mr. Heimbrod has made m^agnetic observations at 

 the following stations : Suva, Viti Levu, Fiji Islands (three stations) ; 

 Rotumah Island; Tilingitha Island; Suva, Viti Levu, Fiji Islands (com- 

 parisons of his instrumental outfit with that of the Galilee and determinations 

 of corrections and constants of dip circle No. 171 supplied him from the 

 Galilee to replace the one loaned from the Apia Observatory) ; Nukulau 

 Island; Niakombi Point, Levuku Ovalau, Fiji Islands; Vagadace, Levuku 

 Ovalau, Fiji Islands; Christchurch, New Zealand; several stations in the 

 Society Islands, including Tahiti Island, also in the Paumotu, or Low Archi- 

 pelago, and Rarotonga Island of the Cook Group. At the end of the fiscal 

 year Mr. Heimbrod was en route to Auckland, New Zealand, and Sydney, 

 Australia. 



The observations at Christchurch will furnish a direct correlation between 

 the standards used by the Potsdam, Cheltenham, Apia, and Christchurch 

 magnetic observatories, as also between the instruments used by the British 

 Antarctic and the German Antarctic expeditions and by the Galilee in the 

 Magnetic Survey of the Pacific Ocean. 



From several of Mr Heimbrod's stations important contributions to the 

 secular variation data have been obtained. 



Canada. — In order to furnish data for the completion of the magnetic 

 survey of the region of the earth bounded by the parallels of latitude 20° and 

 49° north and the meridians of 65° and 125° west, the director, together 



16 — YB 



