THE T 91 6 



ELEMENTS OF EMBRYOLOGY. 



V- 



' 



BY 



M. FOSTER, M.A., M.D, F.R.S., 



FELLOW OF AND PRELECTOR IN PHYSIOLOGY IN TRINITY COLLEGE, CAMBRIDGE, 



AND 



FRANCIS M. BALFOUR, B.A., 



FELLOW OF TRINITY COLLEGE, CAMBRIDGE. 



HonUon : 

 MACMILLAN AND CO. 



1874. 



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