Abstract
ONE privileged to deliver such a lecture as this is almost inevitably led to look back over the topics selected by his predecessors. The Cutter Lectures on Preventive Medicine have been an extraordinarily diverse lot; yet all that I have consulted have dealt with well-recognized aspects of the field of public health. At first glance, it would seem doubtful if the same thing can be said of the subject under consideration. Perhaps, then, I should state at the outset that in this discussion of inherited human hemoglobin types, I shall be far less concerned with the technical differentiation and the . . .
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