LXXV. The DISPERSAL of SHELLS: an Inquiry into the means of Dispersal possessed by Fresh Water and Land Mollusca. By H. Wallis Kew, F.Z.S. With Preface by A. R. Wallace, F.B.S., and Illustrations. LXXVI. RACE and LANGUAGE. By André Lefèvre, Professor in the Anthropological School, Paris. LXXVII. The ORIGIN of PLANT STRUCTURES by SELF-ADAPTATION TO THE ENVIRONMENT. By Rev. G. Henslow. M.A., F.L.S., F.G.S., &c., author of 'The Origin of Floral Structures,' &c. LXXVIII. ICE-WORK PRESENT and PAST. By Rev. T. G. Bonney, D.Sc., LL.D., F.R.S., &c., Professor of Geology at University College, London; Fellow of St. John's College, Cambridge. LXXIX. A CONTRIBUTION to our KNOWLEDGE of SEEDLINGS. By Rt. Hon. Sir John Lubbock, Bart., M.P., F.R.S. LXXX. The ART of MUSIC. By Sir C. Hubert H. Parry, Mus. Doc. LXXXI. The POLAR AURORA. By Alfred Angot. Illustrated. LXXXII. WHAT is ELECTRICITY? By J. Trowbridge. Illustrated. LXXXIII. MEMORY. By F. W. Edridge-Green, M.D. With Frontispiece. LXXXIV. The ELEMENTS of HYPNOTISM. By B. Harry Vincent. With Diagrams. Second Edition. LXXXV. SEISMOLOGY. By John Milne, F.R.S., F.G.S., &c., Author of 'Earthquakes.' With 63 Figures. LXXXVI. On BUDS and STIPULES. By the Right Hon. Sir John Lubbock, Bart, M.P., F.R.S., D.C.L., LL.D. With 4 Coloured Plates and 340 Figures in the Text. LXXXVII. EVOLUTION by ATROPHY, in Biology and Sociology. By Jean Demoor, Jean Massart, and Emile Vandervelde. Translated by Mrs. Chalmers Mitchell. With 84 Figures. London: KEGAN PAUL, TRENCH, TRÜBNER, & CO., Ltd. * * * * * Transcriber Note Minor typos corrected. Listing of "The International Scientific Series" was split between the front and end of book but are here moved to the end. The list was also reformatted. The captions for the map key in Figure 58 were reformatted into a table. Figure 41 was relocated as it followed Figure 42 in the printed version.