234 REPORTS ON INVESTIGATIONS AND PROJECTS. 



hardships, and the successful execution of the work required no little perse- 

 verance, endeavor, and self-sacrifice. It is a pleasure to make record of 

 the substantial assistance rendered by the Australian Post Office Depart- 

 ment and the officers of the Overland Telegraph. Port Darwin was reached 

 September 17. The total number of stations occupied in South Australia 

 and the Northern Territory was 40. Upon completion of the work at Port 

 Darwin, Mr. Kidson's party sailed for Melbourne, stopping en route to 

 make observations at Thursday Island; special magnetic observations were 

 made at this station on October 10, 1912, in connection with the solar eclipse 

 of that date. Mr. F. W. Cox served as assistant observer after May and 

 accompanied Mr. Kidson on the transcontinental trip. 



Europe. — Having completed his work in Italy in October 191 1, Observer 

 W. H. Sligh left Rome on November 1 en route to Africa and made mag- 

 netic observations at Palermo (Sicily) and Valetta (Malta). Later, in 

 connection with his work in Morocco, he secured magnetic data at Gibraltar 

 and at San Roque, Spain. 



South America. — Magnetic work in South America was begun in April 

 by a party composed of J. P. Ault, chief, and Observers H. R. Schmitt and 

 D. MacKenzie. The magnetic elements were determined at 54 stations in 

 Bolivia, Chile, Ecuador, and Peru. Observer Schmitt carried out a dif- 

 ficult expedition in Peru, starting at Lima and extending to Masisea on the 

 Ucayali River, connecting there with Observer Stewart's work of 1910 and 

 191 1 on the Amazon and Ucayali rivers; one series of stations across the 

 entire continent has thus been completed. Returning to Lima August 17, 

 Mr. Schmitt set out shortly afterward to establish a series of magnetic sta- 

 tions from Lima to Cuzco, where he arrived October 30. 



Observer MacKenzie, after observing at 6 stations in Peru and Bolivia, 

 resigned in June and was replaced by Observer A. D. Power. The latter 

 reported to Mr. Ault at Mollendo on July 19 and since then has made mag- 

 netic observations at 16 stations along the coast in Peru and Ecuador en 

 route to Venezuela, the region of his future work. 



Special magnetic observations in connection with the total solar eclipse 

 of October 10, 1912, were made by Mr. Schmitt at Ayacucho, Peru, and by 

 Mr. Power at Esmeraldas, Ecuador. 



Mr. Ault having completed all necessary arrangements for the continua- 

 tion of the magnetic work in South America by Messrs. Schmitt and Power, 

 left Lima on August 20 and returned to Washington in order to carry out 

 special work in connection with the Carnegie's visit to Papeete, Tahiti. 



Miscellaneous. — On his way to South America in April, Mr. Ault reoccu- 

 pied our magnetic station at Colon, Panama. In connection with operations 

 of the Carnegie, land stations have been established at Manila, Philippine 

 Islands, where intercomparisons were obtained with the magnetic standards 

 of the Antipolo Observatory; at Suva, Fiji, and at Papeete, Tahiti. These 

 stations will furnish valuable secular variation data. 



