III. FOODS. By EDWARD SMITH, M.D., LL.B., F.R.S. With 156 Illustrations. Tenth Edition. IV. MIND and BODY: the Theories of their Relation. By ALEXANDER BAIN, LL.D. With Four Illustrations. Ninth Edition. V. The STUDY of SOCIOLOGY. By HERBERT SPENCER. Eighteenth Edition. VI. The CONSERVATION of ENERGY. By BALFOUR STEWART, M.A., LL.D., F.R.S. With 14 Illustrations. Eighth Edition. VII. ANIMAL LOCOMOTION; or, Walking, Swimming, and Flying. By J. B. PETTIGREW, M.D., F.R.S., &c. With 130 Illustrations. Fourth Edition. VIII. RESPONSIBILITY in MENTAL DISEASE. By HENRY MAUDSLEY, M.D. Fifth Edition. IX. The NEW CHEMISTRY. By Professor J. P. COOKE, of the Harvard University. With 31 Illustrations. Eleventh Edition. X. The SCIENCE of LAW. By Professor SHELDON AMOS. Eighth Edition. XI. ANIMAL MECHANISM: a Treatise on Terrestrial and Aerial Locomotion. By Professor E. J. MAHEY. With 117 Illustrations. Fourth Edition. XII. The DOCTRINE of DESCENT and DARWINISM. By Professor OSCAR SCHMIDT (Strasburg University). With 26 Illustrations. Eighth Edition. XIII. The HISTORY of the CONFLICT between RELIGION and SCIENCE. By J. W. DRAPER, M.D., LL.D. Twenty-second Edition. XIV. FUNGI: their Nature, Influences, Uses, &c. By M. C. COOKE, M.A., LL.D. Edited by the Rev. M. J. BERKELEY, M.A., F.L.S. With Illustrations, Fifth Edition. XV. The CHEMISTRY of LIGHT and PHOTOGRAPHY. By Dr. HERMAN VOGEL. With 100 Illustrations. Sixth Edition. XVI. The LIFE and GROWTH of LANGUAGE. By WILLIAM DWIGHT WHITNEY. Sixth Edition. XVII. MONEY and the MECHANISM, of EXCHANGE. By W. STANLEY JEVONS, M.A., F.R.S. Eleventh Edition. XVIII. The NATURE of LIGHT, with a General Account of PHYSICAL OPTICS. By Dr. EUGENE LOMMEL. With 188 Illustrations and a Table of Spectra in Chromo-lithography. Sixth Edition. XIX. ANIMAL PARASITES and MESSMATES. By Monsieur VAN BENEDEN. With 83 Illustrations. Fourth Edition. XX. FERMENTATION. By Professor SCHUeTZENBERGER. With 28 Illustrations. Fourth Edition. XXI. The FIVE SENSES of MAN. By Professor BERNSTEIN. With 91 Illustrations. Seventh Edition. XXII. The THEORY of SOUND in its RELATION to MUSIC. By Professor PIETRO BLASERNA. With numerous Illustrations. Sixth Edition. XXIII. STUDIES in SPECTRUM ANALYSIS. By J. NORMAN LOCKYER, F.R.S. With Six Photographic Illustrations of Spectra, and numerous Engravings on Wood. Fifth Edition. 6_s._ 6_d._ XXIV. A HISTORY of the GROWTH of the STEAM ENGINE. By Professor R. H. THURSTON. With numerous illustrations. Fifth Edition. XXV. EDUCATION as a SCIENCE. By ALEXANDER BAIN, LL.D. Ninth Edition. XXVI. The HUMAN SPECIES. By Professor A. DE QUATREFAGES, Membre de l'Institut. Fifth Edition.