To all four of us, Carsten was the best possible friend and colleague. To Finn, he was a fellow student in the history of science for several years at the Niels Bohr Institute; to Relge, he was a welcome resource for personal and intellectual interac tion in an otherwise less than fertile environment for the history of science; Roger was Carsten's friend and advisor, not least in the development of the dissertation on which the present book is based; and as director of the Niels Bohr Archive, Erik was his main advisor in his historical work. Because he was the person closest to Carsten's work on his Ph. D. dissertation on the history of beta decay, on which the present book is based, it is only fitting that Erik stands as single author of the words in Carsten's memory at the very beginning of this book. Before his untimely death shortly after the completion of the Ph. D. disser tation, Carsten had himself plans to develop the dissertation into a book. Being a true perfectionist, he wanted to rework the manuscript substantively, especially with regard to relating it to the broader discussion among historians of science."

This volume is an important study for understanding the complex interconnections between basic science and its sources of economic support in the period between the two world wars. The focus of the study is on the Institute for Theoretical Physics (later renamed the Niels Bohr Institute) at Copenhagen University, and the role of its director, the eminent Danish physicist, Niels Bohr, in the funding and administration of the Institute. Under Bohr's direction, the Copenhagen Institute was a central workplace in the development and the formulation of quantum mechanics in the 1920s and later became an important center for nuclear research in the 1930s. Dr. Aaserud brings together the scholarhip on the internal origins and development of nuclear physics in the 1930s with descriptions of the concurrent changes in private support for international basic science, particularly as represented by Rockefeller Foundation philanthropy. In the process, the book places the emergence of nuclear physics in a larger historical context. This book will appeal to historians of science, physicists, and advanced students in these areas.

In 1920s, a long-lasting controversy on the interpretation of nuclear beta spectrum arose between Lise Meitner and Charles Drummond Ellis. This controversy, and the reactions from the contending parties when it was settled, reflect clearly the difference between the scientific communities in Berlin and Cambridge at that time. The Meitner-Ellis controversy ended in 1929, and it left an anomaly that attracted leading theoretical physicists. A new dispute, this time between Niels Bohr and Wolfgang Pauli, broke out. It concerned the explanation of the continuity of the primary beta particles and dominated the discussions for the next five years. Pauli argued for a new particle, and Bohr for a new theory; both suggestions were radical steps, but they reflected two different ways of doing physics.

This volume is an important study for understanding the complex interconnections between basic science and its sources of economic support in the period between the two world wars. The focus of the study is on the Institute for Theoretical Physics (later renamed the Niels Bohr Institute) at Copenhagen University, and the role of its director, the eminent Danish physicist, Niels Bohr, in the funding and administration of the Institute. Under Bohr's direction, the Copenhagen Institute was a central workplace in the development and the formulation of quantum mechanics in the 1920s and later became an important center for nuclear research in the 1930s. Dr. Aaserud brings together the scholarhip on the internal origins and development of nuclear physics in the 1930s with descriptions of the concurrent changes in private support for international basic science, particularly as represented by Rockefeller Foundation philanthropy. In the process, the book places the emergence of nuclear physics in a larger historical context. This book will appeal to historians of science, physicists, and advanced students in these areas.