And since for all Change, two (or more) contrary impulses are necessary, and since Reproduction is a function of Sex, what is to be inferred but that Evolution and Growth and all other phenomena of living cells result from oppositions, co-operations and correlations of the contrary impetus and processes of two orders of sex-factors present therein? By way alone of their bi-sexuality, are cells, both animal and vegetable, able to reproduce the cell-offspring required by living organisms for processes of growth, of function and repair. PRINTED IN GREAT BRITAIN BY RICHARD CLAY & SONS, LIMITED, BRUNSWICK ST., STAMFORD ST., S.E.1 AND BUNGAY, SUFFOLK. * * * * * WOMAN AND LABOUR By OLIVE SCHREINER Demy 8vo, cloth, 8s. 6d. net _SEVENTH IMPRESSION_ "At last there has come the book which is destined to be the prophecy and the gospel of the whole awakening.... Remarkable as this book of Olive Schreiner's is, merely as an intellectual achievement, its greatness and its life are in the emotional power which has found its stimulus and its inspiration in a vision of the future.... A book which will be read and discussed for many years to come."--_The Nation._ "It is a fascinating mingling of keen argument, scientific knowledge, historical pageantry, rushing emotion, written (need it be said) in that adorned prose which is Olive Schreiner's characteristic style.... The book ... is an epic."--Mr. J. RAMSAY MACDONALD in _The Daily Chronicle_. "All the qualities which long ago won for Olive Schreiner the gratitude and admiration of readers all over the globe are here in their old strength. There is fierce satire; there is deep-souled eloquence. There is the same quick reasoning, the same tenderness, the same poetic insight into the puzzle of life.... The feelings which are behind the various women's movements could not find clearer or more eloquent expression than they do in this remarkable book."--_The Daily Mail._ "It is one of those books which are sunrises, and give us spacious and natural horizons. Like Mazzini's essays, it is logic touched with emotion, politics on fire. One may begin to doubt the cause of woman's rights when the opponents of sex equality produce an equally glowing earnest and prophetic book."--_The Daily News._ T. FISHER UNWIN, Ltd., 1 Adelphi Terrace, London, W.C. BABY WELFARE A GUIDE TO ITS ACQUISITION AND MAINTENANCE By W. E. ROBINSON, M.D. _Assistant Physician and Pathologist to the Infants' Hospital, London_ Demy 8vo, cloth, 7s. 6d. net "We congratulate the author on his careful study of the healthy infant, about whom it has too long been difficult to obtain exact information."--_The Lancet._