LXXIV. A HISTORY of CRUSTACEA: Recent Malacoatraca. By THOMAS R. R. STEBBING, M.A. With 19 Plates and 32 Figures in Text. 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.R.S., and Illustrations. LXXVI. RACE and LANGUAGE. By ANDRE LEFEVRE, 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.C.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 Lord AVEBURY. 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 R. HARRY VINCENT. With Diagrams. Second Edition. LXXXV. SEISMOLOGY. By JOHN MILNE, F.R.S., F.G.S., &c, Author of 'Earthquakes.' With 53 Figures. LXXXVI. On BUDS and STIPULES. By Lord AVEBURY, 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. LXXXVIII. VARIATION in ANIMALS and PLANTS. By H. M. VERNON, M.A., M.D. London: KEGAN PAUL, TRENCH, TRUeBNER, & CO., LTD.