Our aim in this volume, as in Volume I, HormonaI Correlates of Behavior: A Life Span View, has been to provide a critical assess- ment of the state of behavioral endocrinology as weIl as the more usual summary of extant data. Each contributor was asked to probe the strengths and weaknesses of his area as candidly as possible. As aresult, we hope the reader will find this Volume useful as a reference source and as an honest evaluation of our present know- ledge of the interaction between hormones and behavior. R. L. Sprott Bar Harbor, 1975 B. E. Eleftheriou v CONTRIBUTORS Robert Ader, Ph.D.,...