For the subjects treated in the individual chapters the following, among others, may be consulted. Suess's book translated as _The Face of the Earth_ (Oxford: Clarendon Press, still in course of publication, price £4 net) is the classical book on earth structure and relief, and has stimulated research enormously, but it is not easy to read. For climatology the classical book is Hann's _Handbuch_, of which the general part has been translated by Ward as _Handbook of Climatology_ (New York: The Macmillan Co., 1903, price 12_s._ 6_d._). For plant geography reference should be made to Schimper's _Plant Geography_, translated by Fisher (Oxford: Clarendon Press, 1903, price 42_s._ net), which is again the classical treatise, and the basis of most of the later work. For the races of Europe we have in W. Z. Ripley's _Races of Europe_ (London: Kegan Paul, Trench, Trübner & Co., 1900, price 18_s._ net) a most interesting book, not difficult and full of most instructive diagrams. Another aspect of the same subject is treated in Sergi's _The Mediterranean Race_ (Contemporary Science Series, London: Walter Scott, 1901, price 6_s._), but this is very controversial in tone. For the work of ice, the most important book is _Die Alpen im Eiszeitalter_ by A. Penck and G. Brückner (Leipzig: Tauchnitz, 1909, price 55 marks), but the line of reasoning followed in it does not convince all geographers, and the subject is still fiercely debated. Turning now to more general aspects of the subject we have in _The International Geography_, edited by H. R. Mill, and written by many authors (now published by Macmillan, London--new edition 1907, price 12_s._ net; also published in parts for school use), a most comprehensive and authoritative work, which includes the whole globe in its survey, and has also general chapters on various aspects of geography. It is, however, a difficult book, intended for study rather than for general reading, and is very much condensed. A book which, though dealing only with a very limited region, yet contrives in discussing that area to give the essentials of modern geographical science, is Mackinder's _Britain and the British Seas_ (second edition. 1907. Oxford: Clarendon Press, price 7_s._ 6_d._). It should be in all geographical libraries.