“Goes uncommonly well, and deserves to.”—_Observer._ “Not for squeamish readers.”—_Spectator._ “No more amusingly unexpected contribution has been made to this series. A deliciously ironical affair.”—_Bystander._ “His highly entertaining essay is as full as the current standard of printers and police will allow.”—_New Statesman._ “Humour and style are beyond criticism.”—_Irish Statesman._ =Socrates=, or the Emancipation of Mankind. By H. F. CARLILL. “Devotes a specially lively section to the herd instinct.”—_Times._ “Clearly, and with a balance that is almost Aristotelian, he reveals what modern psychology is going to accomplish.”—_New Statesman._ “One of the most brilliant and important of a remarkable series.”—_Westminster Gazette._ =Delphos=, or the Future of International Language. By E. SYLVIA PANKHURST. “Equal to anything yet produced in this brilliant series. Miss Pankhurst states very clearly what all thinking people must soon come to believe, that an international language would be one of the greatest assets of civilization.”—_Spectator._ “A most readable book, full of enthusiasm, an important contribution to this subject.”—_International Language._ =Gallio=, or the Tyranny of Science. By J. W. N. SULLIVAN, author of “A History of Mathematics.” “So packed with ideas that it is not possible to give any adequate _résumé_ of its contents.”—_Times Literary Supplement._ “His remarkable monograph, his devastating summary of materialism, this pocket _Novum Organum_.”—_Spectator._ “Possesses a real distinction of thought and manner. It must be read.”—_New Statesman._ =Apollonius=, or the Future of Psychical Research. By E. N. BENNETT, author of “Problems of Village Life,” etc. “A sane, temperate and suggestive survey of a field of inquiry which is slowly but surely pushing to the front.”—_Times Literary Supplement._ “His exposition of the case for psychic research is lucid and interesting.”—_Scotsman._ “Displays the right temper, admirably conceived, skilfully executed.”—_Liverpool Post._ =Aeolus=, or the Future of the Flying Machine. By OLIVER STEWART. “Both his wit and his expertness save him from the nonsensical-fantastic. There is nothing vague or sloppy in these imaginative forecasts.”—_Daily News._ “He is to be congratulated. His book is small, but it is so delightfully funny that it is well worth the price, and there really are sensible ideas behind the jesting.”—_Aeroplane._ =Stentor=, or the Press of To-Day and To-Morrow. By DAVID OCKHAM. “A valuable and exceedingly interesting commentary on a vital phase of modern development.”—_Daily Herald._ “Vigorous and well-written, eminently readable.”—_Yorkshire Post._ “He has said what one expects any sensible person to say about the ‘trustification’ of the Press.”—_Spectator._ =Rusticus=, or the Future of the Countryside. By MARTIN S. BRIGGS, F.R.I.B.A.