236 Mr. F. W. Dyson. 



on board the Dutch mail steamer " Koningen Eegentes," at] r k South- 

 ampton, on March 4. The observers joined the ship at Genoa, on 

 March 14, and sailed in company with Mr. and Mrs. Newall, the 

 Dutch eclipse party, and an American eclipse party from the Massa- 

 chusetts Institute of Technology, direct to Padang in Sumatra, 

 arriving there on April 6. 



In consultation with Mr. Joekes the Governor of the West Coast 

 and Major Miiller the Director of the Ordnance Survey as to choice 

 of station, it appeared that the small island of Pulo Aoer Gadang 

 might be suitable, and the Governor kindly offered us the use of his 

 yacht to visit the island on March 10. In company with Mr. Von 

 Locken we chose a suitable site and made the necessary arrange- 

 ments with the native chief who owned the island. Lieut, and Com. 

 Oldham conveyed us with our instruments and materials for building 

 huts to Gadang on March 13, and remained anchored off Gadang, 

 except for short necessary visits to Padang for ice, fresh meat, &c., 

 till May 25, one week after the eclipse. On this day the instruments 

 were brought back to Padang for shipment to Europe, and the 

 observers Avere conveyed to Singapore, which was reached in the early 

 morning of June '2. 



Station. The particularly uncertain character of the weather in 

 Sumatra made it desirable that stations as far apart as possible should 

 be occupied by the different parties of observers. The stations 

 occupied by different expeditions are shown on the accompanying 

 map (A). 



Saivah Loento, by Mr. Newall and by a party from the Massa- 

 chusetts Institute of Technology. 



Solok, by numerous American observers of the United States Naval 

 Observatory expedition. 



Fart de Koch, by American and Dutch observers. 



Padang, by the Lick Observatory party, French, Russian, and 

 Japanese observers. 



Karang Sago, by the Dutch party. 



Aoer Gadang, by the Royal Observatory. 



The presence of the " Pigmy " made it possible to occupy Aoer 

 Gadang. This station had the advantage of being as far away as 

 possible from the mountain range which runs parallel to the west 

 coast of Sumatra. Solok and Sawah Loento are to the east of this 

 range. 



Aoer Gadang is a small island about 1 mile long and mile broad, 

 surrounded by a coral reef. The site chosen for the eclipse camp was 

 a small clearing near the eastern shore opposite a passage through 

 the reef. Its position, as determined from large scale maps published 

 by the Government of the Dutch East Indies, is lat. 1 23' 28" S., and 

 long. 100 29' 13" E. of Greenwich. It is about 7 miles distant from 



