25 DECEMBER 1920, Page 27

The Geographical Journal for December contains Mr. Philbys important paper

describing his journey across Central Arabia from the Persian Gulf through Riadh to Taif and thence to Jeddah on the Red Sea. It is accompanied by a good map, most of the detail in which is new. Mr. Philby travelled with a caravan, by permission of Ibn Saud, the powerful ruler of Riadh, and took seventeen days on the desert march from Riadh to Tad, the hill-town of the Hedjaz. Major Kenneth Mason's "Notes on the Canal System and Ancient Sites of Babylonia In the time of Xenophon" are a valuable contribution to the geography of the Anabasis ; he points out, for example, that the Median Wall did not run from the Tigris to the Euphrates, but stopped short a few miles from its end on the Tigris. Professor 'Ayres completes his excellent paper ou the history and geography of the Dodecanese, where he was stationed es an intelligence officer during the war.