REPRODUCTION AND LIFE CYCLES 433 



of transplantation experiments. Naturally the stage of development 

 reached at the time of transplantation affects the results obtained. 

 Much work, however, remains to be done in this fascinating field. 



SUGGESTED READINGS 



Huxley, J. S., and DeBeer, R. G., Elements of Experimental Embryology, The 



Macmillan Co., 1934. 



Scientific but readable account of modern embryology. 

 McEwen, R. S., Vertebrate Embryology, rev. ed., Henry Holt & Co., 1931. 



A standard elementary text for reference. 

 Morgan, T. H., Embryology and Genetics, Columbia University Press, 1934. 



Popularly written attempt to tie up modern embryology and genetics. 

 Patten, B., Early Embryology of the Chick, 3rd ed., P. Blakiston's Son & 



Co., 1929. 



Excellent account of avian development. 

 Richards, A., Outline of Comparative Embryology, John Wiley & Sons, Inc., 



1931. Pp. 20-90. 

 Wells, H. G., Huxley, J. S., Wells, C. P., The Science of Life, Doubleday, 



Doran & Co., 1934. Pp. 150-159. 



Popular account of human development. 



