An Introduction to the Study of the Development Theory by D. KERFOOT SHUTE, M.D., Professor of Anatomy in the Medical Department of the Columbian University, Member of the Association of American Anatomists, Member of the Washington Microscopical Society, etc. Pages, xvi--285, 39 illustrations--9 in natural colors. Price, cloth, $2.00 net (7s, 6d. net). “It is a presentation of the subject for the general reader which is masterly, clear, and entertaining. A profound subject is thoroughly grasped; a technical subject is made plain; and a complex subject is made simple. I am especially delighted with it as a book for auxiliary reading in the High Schools and Colleges of the country.”--Major J. W. Powell, Smithsonian Institution, Washington, D. C. [Illustration: THE GRASPING POWER OF INFANTS. (From Shute’s ORGANIC EVOLUTION.) The Principles of Bacteriology By DR. FERDINAND HUEPPE, Professor of Hygiene in the University of Prague. Translated from the German and annotated by EDWIN O. JORDAN, Ph.D., Professor in the University of Chicago. 28 cuts. Five colored plates. Pages, 465--x. Price, $1.75 net (9s.). Invaluable to the physician, the scientist, the student of hygiene, and practical people in all walks of life. “It affords more ground for serious thought and reflection than perhaps any of the works on bacteriology hitherto published. The original and able manner in which the author attacks biological problems of great difficulty and complexity deserves all praise, and we can cordially recommend the book, not only to bacteriologists pure and simple, but also to those physicians who recognize the limitations of medical science.”--Nature. Articles Published in The Monist and The Open Court on Subjects Related to Biology and Evolution For prices on the back numbers of “The Open Court” and “The Monist,” containing the articles here listed, please consult 2nd cover page of this catalogue. =A. R. Wallace on Physiological Selection.= By PROF. GEORGE J. ROMANES. “The Monist,” Vol. I, No. 1. 50 cents. =On the Material Relations of Sex in Human Society.= By PROF. E. D. COPE. “The Monist,” Vol. I, No. 1. 50 cents. =The Immortality of Infusoria.= By DR. ALFRED BINET. “The Monist,” Vol. I, No. 1. 50 cents. For prices on the back numbers of “The Open Court” and “The Monist,” containing the articles here listed, please consult 2nd cover page of this catalogue. [Illustration: JOSEPH LE CONTE. (1823-1901.)] =The Factors of Evolution.= By JOSEPH LE CONTE. “The Monist,” Vol. I, No. 3. 50 cents. =The Continuity of Evolution.= The Science of Language versus The Science of Life, as represented by Prof. F. Max Mueller and Prof. G. J. Romanes. By DR. PAUL CARUS. “The Monist,” Vol. II, No. 1. 50 cents.