CAMBRIDGE UNIVERSITY PRESS 



Devonian Floras. A Study of the Origin of Cormophyta. 

 By E. A. Newell Arber, M.A., Sc.D. With a Preface by 

 D. H. Scott, F.R.S. Demy 8vo. With a frontispiece and 47 

 text-figures. 17s 6d net. 



Water Plants. A Study of Aquatic Angiosperms. By 

 Agnes Arber, D.Sc, F.L.S., Fellow of Newnham College, Cam- 

 bridge. Royal 8vo. With a frontispiece and 171 text-figures. 

 31s 6d net. 



The Origin of Man and of His Superstitions. By 



Carveth Read, M.A., Lecturer on Comparative Psychology 

 (formerly Grote Professor of Philosophy) in University College, 

 London. Demy 8vo. IBs net. 



The Influence of Man on Animal Life in Scotland. 



By J. Ritchie, M.A., D.Sc, F.R.S.E. Royal 8vo. With 91 illustra- 

 tions, including many original photographs and drawings, and 

 8 maps. 28s net. 



The Concept of Nature. Tarner Lectures delivered in 

 Trinity College, Cambridge, November, 1919. By A. N. White- 

 head, Sc.D., F.R.S. Demy 8vo. 14s net. 



An Enquiry concerning the Principles of Natural 

 Knowledge. By A. N. Whitehead, Sc.D.. F.E.S. 

 Demy 8vo. 14s net. 



An Introduction to the Study of Cytology. By L. 



Doncaster, Sc.D., F.R.S., late Derby Professor of Zoology in the 

 University of Liverpool. Demy 8vo. With 24 plates and 31 

 text-figures. 21s net. 



The Determination of Sex. By L. Doncaster, Sc.D. 



Demy 8vo. With 23 plates. 10s net. 



Mendel's Principles of Heredity. By W. Bateson, 



M.A., F.R.S., V.M.H., Director of the John Innes Horticultural 

 Institution. Third impression with additions. Royal 8vo. With 

 3 portraits, 6 coloured plates and 38 figures. 15s net. 



The Methods and Scope of Genetics. An Inaugural 



Lecture delivered 23 October 1908 by W. Bateson, M.A., F.R.S. 



Crown 8vo. 2s net. 



Growth in Length: Embryological Essays. By 



Richard Assheton, M.A., Sc.D., F.R.S., Trinity College, Cam- 

 bridge. Demy 8vo. With 42 illustrations, 2s 6d net. 



Cambridge University Press 



Fetter Lane, London, E.G. 4 : C. F. Clay, Manager 



