Cambridge University Press 



MIMICRY IN BUTTERFLIES 



By R. C. PUNNETT, F.R.S, Arthur Balfour Professor of Genetics in the 



University of Cambridge. Royal 8vo. Buckram. With 16 plates. 1.5s net. 



"Though much lias been written on the subject of late years, there has not heretofore been 

 any single comprehensive book dealing with it in the light of the latest knowledge. This lack 

 Professor Punnett has admirably supplied. Primarily he brings to bear on the question the 

 arguments of Mendelism... .Professor Punnett collates the facts from various sources, and 

 presents them clearly and in duo proportion. His explanations are helped by excellent coloured 

 plates illustrating the most important examples of mimicry from different parts of the world.... 

 The whole subject is still beclouded. We have only the beginnings of knowledge. But at least 

 in Professor Punnctt's treatise we seem to see the foreshadowing of something like a founda- 

 tion of solid fact in place of what has heretofore been a rather airy structure of fascinating 

 guesswork." — Times 



THE ANTHOCYANIN PIGMENTS 

 OF PLANTS 



By MURIEL WHELDALE, Fellow of Newnham College, Cambridge, and 

 formerly Research Student at the John Innes Horticultural Institution, 

 Merton, Surrey. Royal 8vo. 



" Of the various investigations which have been made upon the anthocyanin pigments along 

 botanical, chemical and genetical lines, no complete account has yet been written. It is the 

 object of this book to provide such an account of the work which has been done. 



We have now ample evidence that the development in plants of many and various 

 anthocyanin pigments affords an almost unlimited supply of material for the study of inherit- 

 ance. It must also be patent to those who have been working on the subject of Genetics that 

 a proper conception of the inter-relationships and inheritance of the manifold characters of 

 animals and plants will be greatly facilitated by a knowledge of the chemical substances and 

 reactions of which these characters are largely the outward expression. Herein lies the interest 

 connected with anthocyanin pigments. For we have now, on the one hand, satisfactory methods 

 for the isolation, analyses and determination of the constitutional formulae of these pigments. 

 On the other hand, we have the MeudeUan methods for determining the laws of their inheritance. 

 By a combination of the two methods, we are within reasonable distance of being able to express 

 some of the phenomena of inheritance in terms of chemical composition and structure. There 

 can be little doubt that exact information of this kind must be at least helpful for the true under- 

 standing of the vital and important subject of Heredity." — Extract from PrefcKe 



THE DETERMINATION OF SEX 



By L. DONCASTER, Sc.D., Fellow of King's College, Cambridge. 



Demy 8vo. With frontispiece in colour and 22 plates. 7s 6d net. 



" The whole book is worthy of careful study, and it shows the sound progress which is 

 being made by the scientific school at the University of Cambridge. ... It is well illustrated." 



Athenaeum 

 "In this little book Dr Doncaster has given an account of our present knowledge of the 

 causes which determine the sex of offspring. He has handled the subject in a most admirable 

 manner. It would be difficult to praise too highly the clear and impartial way in which he 

 marshals his evidence... We have the greatest pleasure in commending this book to our readers 

 as giving the ablest, clearest, and tersest account of the sex- problem which we have seen." 



Prof. E. W. MacBride in the Evgrnics Review 



MENDEL'S PRINCIPLES 

 OF HEREDITY 



By W. BATESON, M.A., F.R.S., V.M.H., Director of the John Innes 

 Horticultural Institution. Thir-d impression tuith additions. With 

 3 portraits, 6 coloured plates, and 38 other illustrations. Royal 8vo. 

 12s net. 



Cambridge University Press, Fetter Lane, London 



C. F. Clay, Manager 



