RT Journal A1 Kretchmer N T1 DEvelopmental biology JF American Journal of Diseases of Children JO American Journal of Diseases of Children YR 1969 FD December 1 VO 118 IS 6 SP 836 OP 846 DO 10.1001/archpedi.1969.02100040838006 UL http://dx.doi.org/10.1001/archpedi.1969.02100040838006 AB I WAS asked to discuss developmental biology with the stipulation that I predict the potential future contributions of this field to human development and pediatrics. In considering this task, I was struck by not only its enormity, but also my assignment necessitated the scaling of the barriers between disciplines.As a clinician and a biochemist I have dabbled in a number of areas and have been associated with a number of groups which lack the ability to communicate with one another. In part, this is a result of a language barrier, and in part it is a consequence of circumstances leading to the self-imposed sanctity of various fields. It is this kind of bridging problem with which I am faced today. In some way, I have assumed the nonenviable position—or, rather, Dr. Diamond has placed me in the nonenviable position—of a man with sight in the old Hindu tale