Research in Terrestrial Magnetism ¹

Abstract

THE handsomely printed and illustrated volume before us records the activity of the Department of Terrestrial Magnetism by land from 1911 to 1913. In pp. 5–20 we have an account, illustrated in plates -2,3, and 4, of instruments used in the world survey on which the department has been engaged since 1905. Pp. 21–182 deal with the land observations made during 1911 to 1913. The names of thirty-four observers are recorded on p. 23. Of the 983 stations ooccupied, 207 were in Africa, including 106 in Algeria and the Algerian Sahara, 52 in French West Africa, and 13 in Morocco. In Asia there were 83 stations, 59 being in China or Indo-China. There were 284 stations in Australasia, and 247 in South America, the latter distributed in eleven countries, 63 stations being in Peru and 52 in Brazil; 46 stations were occupied in islands in the Pacific, Atlantic, and Indian Oceans, and 30 in the Antarctic, by members of Sir Douglas Mawson's Expedition, trained and supplied with instruments by the department. The results are otabulated on pp. 26–64 of the volume. The following sixty-four pages are devoted to the observers' reports, illustrated by seventeen photographs in plates 5, 6, and 7.