“A very careful summary.”—_Times Literary Supplement._ “A temperate and scholarly survey of the arguments for and against the encouragement of the practice of birth control.”—_Lancet._ “He writes lucidly, moderately, and from wide knowledge; his book undoubtedly gives a better understanding of the subject than any other brief account we know. It also suggests a policy.”—_Saturday Review._ =Ouroboros=, or the Mechanical Extension of Mankind. By GARET GARRETT. “This brilliant and provoking little book.”—_Observer._ “A significant and thoughtful essay, calculated in parts to make our flesh creep.”—_Spectator._ “A brilliant writer, Mr Garrett is a remarkable man. He explains something of the enormous change the machine has made in life.”—_Daily Express._ =Artifex=, or the Future of Craftsmanship. By JOHN GLOAG, author of “Time, Taste, and Furniture.” “An able and interesting summary of the history of craftsmanship in the past, a direct criticism of the present, and at the end his hopes for the future. Mr Gloag’s real contribution to the future of craftsmanship is his discussion of the uses of machinery.”—_Times Literary Supplement._ =Plato’s American Republic.= By J. DOUGLAS WOODRUFF. _Fourth impression._ “Uses the form of the Socratic dialogue with devastating success. A gently malicious wit sparkles in every page.”—_Sunday Times._ “Having deliberately set himself an almost impossible task, has succeeded beyond belief.”—_Saturday Review._ “Quite the liveliest even of this spirited series.”—_Observer._ =Orpheus=, or the Music of the Future. By W. J. TURNER, author of “Music and Life.” _Second impression._ “A book on music that we can read not merely once, but twice or thrice. Mr Turner has given us some of the finest thinking upon Beethoven that I have ever met with.”—_Ernest Newman_ in _Sunday Times_. “A brilliant essay in contemporary philosophy.”—_Outlook._ “The fruit of real knowledge and understanding.”—_New Statesman._ =Terpander=, or Music and the Future. By E. J. DENT, author of “Mozart’s Operas.” “In _Orpheus_ Mr Turner made a brilliant voyage in search of first principles. Mr Dent’s book is a skilful review of the development of music. It is the most succinct and stimulating essay on music I have found....”—_Musical News._ “Remarkably able and stimulating.”—_Times Literary Supplement._ “There is hardly another critic alive who could sum up contemporary tendencies so neatly.”—_Spectator._ =Sibylla=, or the Revival of Prophecy. By C. A. MACE, University of St. Andrew’s. “An entertaining and instructive pamphlet.”—_Morning Post._ “Places a nightmare before us very ably and wittily.”—_Spectator._ “Passages in it are excellent satire, but on the whole Mr Mace’s speculations may be taken as a trustworthy guide ... to modern scientific thought.”—_Birmingham Post._