NO. 4 SITE FOR SOLAR-RADIATION STATION — MOORE 23 



native officials of the Egyptian Government; to Dr. John Ball, in 

 charge of the Desert Survey of Egypt, for valuable advice and fur- 

 nishing us with an excellent map of the Sinai Peninsula ; to Dr. Robert 

 McClenahan, Dean of the American University, on whom we often 

 called for advice and help, and who recommended a reliable dragoman 

 to us; to the ever-helpful missionaries of the American Mission; 

 to Mr. Davidson in charge of the Near East Foundation work in 

 Cairo ; and to Mr. Salameh, of Cook's Agency, for their generous part 

 in making our stay in Egypt a pleasant one. 



Summary. — Observations for determining the suitability of various 

 high mountains in the Eastern Hemisphere for sites for solar-radia- 

 tion stations were carried on in the island of Fogo, in the Cape Verde 

 group ; in Southwest Africa ; and on Mount St. Katherine in the Sinai 

 Peninsula. About two months were spent in the Cape Verde Islands, 

 seven months in Southwest Africa, and five months in the Sinai Penin- 

 sula and Egypt. Owing to freedom from clouds and wind, Mount St. 

 Katherine proved to be considerably better than the Cape Verde 

 Islands and Southwest Africa. The haziness which sometimes 

 enshrouds Mount St. Katherine during the spring months probably 

 causes it to fall short of northern Qiile as regards suitability, but 

 doubtless it will prove considerably superior to Mount Brukkaros and 

 Table Mountain for solar-constant work. 



