About the Book:Introduction Paul Ehrlich and his Receptor Concept The Development of the Concept of Drug Receptors in the Physiological Research of J. N. Langley The Receptors and Scientific Pharmacology I: The Critics of the Receptor Idea and Alternative Theories of Drug Action, c. 1905-1935 The Receptors and Scientific Pharmacology II: The Critics of the Receptor Idea and Alternative Research Strands: The Transmitter Theory, c. 1905-1935 Quantitative Arguments for the Existence of Drug Receptors and the Development of the Receptor Occupancy Theory, c. 1910-1960 The Dual Adrenaline Receptor Theory of Raymond P. Ahlquist (1914-1983) and its Application in Drug Development between 1950 and 1970 The Emergence of Molecular Pharmacology Conclusions Archival Sources Bibliography