THE COLLECTED PAPERS OF Albert Einstein VOLUME 1 THE EARLY YEARS, 1879-1902 John Stachel, EDITOR DAVID C. CASSIDY, ASSOCIATE EDITOR ROBERT SCHULMANN, ASSOCIATE EDITOR JÜRGEN RENN, ASSISTANT EDITOR OLGA GRIMINGER, GARY SMITH, AND ROBERT SUMMERFIELD, EDITORIAL ASSISTANTS Princeton University Press 1987