PUBLISHER'S FOREWORD xiii came the partner of the Press in this great enterprise. The Hebrew University named Professor Reuven Yaron of its law faculty and Professor Milton Handler of Columbia University as its official representatives for the pro- ject. Soon afterward the original archive was moved from the Institute for Advanced Study to Jerusalem. A duplicate of the archive, carefully con- formed to the original, is used by the Einstein Editorial Office. A copy is open to scholars at the Seeley G. Mudd Library of Princeton University and another copy will be made available in the Mugar Memorial Library of Boston University. In October 1981 Dr. Robert Schulmann joined the project as staff his- torian, later associate editor. Dr. Schulmann is a specialist on modern European history, with extensive archival experience and knowledge of historical editing. Since more space was needed, the offices of the project moved from the Institute for Advanced Study to Princeton University Press. In 1983 Dr. David Cassidy assumed the position of associate editor. Dr. Cassidy is a historian of science with a special interest in modern physics. He has worked on editions of the papers of Bohr, Heisenberg, and Pauli. Dr. Jürgen Renn joined the project as Assistant Editor in 1986. Olga Griminger and Gary Smith have served as editorial assistants for this volume, and Robert Summerfield is the current assistant. During all this time Professor Stachel had been on extended leave from Boston University. In the summer of 1984, so that he could return to participation in the physics department at Boston, the project moved to new offices at Boston University, adjacent to the Boston University Center for the Philosophy and History of Science. The project remains independently sponsored by The Hebrew University and Princeton University Press, with the Press as administrator and with Professor Stachel devoting his full time to it. Funding a project of this size, expected to extend over many years and to reach thirty-odd volumes, is inevitably difficult. Work started with planning grants from the U.S. National Science Foundation. Differences between the Trustees of the Einstein Estate and the Press led to considerable delay in the work, and this in turn caused difficulties in funding.2 During this period of uncertainty the project was kept alive first by an endowment gift of one million dollars from Harold W. McGraw, Jr., president of the Trustees of Princeton University Press, assuring funds for the editor's salary, and later by a timely grant from the Alfred P. Sloan Foundation, which has continued to support the work with further contributions. As 2 See American Arbitration Association, Case Number 1310-0333-79, July 18, 1980.