As will already be apparent, an exceptionally useful and attractive feature of this volume is Hagemann's introductory essay, which, dealing as it does with Hahn's life as well as his economies, and of course carrying the story of both beyond 1933, surely supercedes Ellis1934 as the first source that anyone seeking a guide to Hahn's contributions should consult. But this is not the books only virtue. Clemens Matt's translation provides smooth reading, probably smoother than does the original, even for readers whose first language is German, to judge by the brief note in which he describes his self-conscious decision to favour above literalness.
David laidler, University of Western Ontario