THE ELEMENTS OF 

 EXPERIMENTAL EMBRYOLOGY 





BY 



JULIAN S. HUXLEY, M.A. 



Honorary Lecturer in Experimental Zoology, 

 King's College, London 



AND 



G. R. DE BEER, M.A., D.Sc. 



Fellow of Merton College, and Jenkinson Lecturer 

 in Embryology, Oxford 



E 



i 



New York - London 

 1963 



