The Eleventh Midwest Conference on Endocrinology and Metabol- ism in September 1975 brought together a number of leading invest- igators in the areas of steroid, peptide, acetylcholine, and cate- cholamine hormone receptor studies. This book is based upon the reports of investigations into hormone receptor biochemistry and physiology presented at the Conference as well as on the ensuing discussions. However, many of the manuscripts were written after the Conference. Because of this, the reader will find that some literature references and results of i vestigations are more up- to-date than...