192 EFFECT OF CENTRIFUGATION ON DEVELOPMENT 



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"The campaign must begin with the study of developmental biology, 

 for we have liardly begun to understand the forces aiul reactions tluit drive 

 and guide the development uf the fertilized ovuni into a hnnian infant. E»i- 

 bryology of the classical morphological type, experimental embryology, 

 cytology, histochemistry, all have their contribution to make. The genes, 

 and the whole sequence of events by whicli they determine the infinite 

 detail of bodily structure, await new discoveries. There are countless 

 unsolved questions in the physiology of reproduction, touching on the 

 maternal environment of the embryo and its control by hormones and other 

 chemical agents of the body. The cliemistry of respiration and nutrition 

 must be called upon to explain tlie marvelous homeostatic balances through 

 which, after all, the child generally enters the world sound and liealthy. 

 Microbiology must detect for us all the various pathogenic organisnis 

 which invade and datnage the fetus in utero; clinical medicine and obstetrics 

 must teach us witat illnesses of the mother may affect her offspring in the 

 susceptible earliest days of development. " 



G. H. Corner, 1960, First Int. Conf. 



Congenital Malformations , London. 



