3 AUGUST 1907, Page 26

We have received Altitude, Azimuth, and Geographical Position, by G.

W. Littlehales (Lippincott Company, .£5 5s. net). We must be content with giving the description of its contents as supplied by the title-page. It comprises, then, "graphical tables for finding the altitude and azimuth, the position line, and the variation of the compass ; and for identifying observed celestial bodies, and finding the course and distance in great circle sailing."