LXVIII. The COLOURS of ANIMALS: their Meaning and Use, especially considered in the case of Insects. By E. B. Poulton, F.R.S. With Chromolithographic Frontispiece and upwards of 60 Figures in Text. Second Edition.
LXIX. INTRODUCTION to FRESH-WATER ALGÆ. With an Enumeration of all the British Species. By M. C. Cooke, LL.D. With 13 Plates Illustrating all the Genera.
LXX. SOCIALISM: NEW and OLD. By William Graham, M.A., Professor of Political Economy and Jurisprudence, Queen's College, Belfast. Second Edition.
LXXI. COLOUR-BLINDNESS and COLOUR-PERCEPTION. By F. W. Edridge-Green, M.D. With 3 Coloured Plates.
LXXII. MAN and the GLACIAL PERIOD. By G. F. Wright, D.D. With 111 Illustrations and Maps. Second Edition.
LXXIII. HANDBOOK of GREEK and LATIN PALÆOGRAPHY. By Sir E. Maunde Thompson, K.C.B. With Tables of Alphabets and Facsimiles. Second Edition.
LXXIV. A HISTORY of CRUSTACEA: Recent Malacostraca. 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.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.