WORKS ON BIOLOGY, etc. (cont.). 



ON BRITISH WILD FLOWERS CONSIDERED 

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THE DEVELOPMENT OF THE FROG'S EGG. 



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THEORY OF DEVELOPMENT AND HEREDITY. 



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AMPHIOXUS, AND THE ANCESTRY OF THE 



VERTEBRATES. By A. WILLEY, B.Sc. 8vo. 10s. Qd. net. 



THE CELL IN DEVELOPMENT AND INHERIT- 

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THE SURVIVAL OF THE UNLIKE. By L. H. 



BAILEY. Crown 8vo. 8s. Qd. 



ARE THE EFFECTS OF USE AND DISUSE 

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MATERIALS FOR THE STUDY OF VARIATION. 



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EVOLUTION AND MAN'S PLACE IN NATURE. 



By Prof. H. CALDERWOOD, LL.D. Second Edition. 8vo. 

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EXPERIMENTAL MORPHOLOGY. By C. D. 



DAVENPORT, Ph.D. Parts I. and II. 8vo. 9s. net each. 



HUMAN EMBRYOLOGY. By Prof. G. S. MINOT. 

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