... Produced by Laura Wisewell, Andrew D Hwang, Amy Cunningham, Colin Bell, and the Online Distributed Proofreading Team at http://www.pgdp.net (The original copy of this book was generously ... generously made available for scanning by the Department of Mathematics at the University of Glasgow.) Ce livre ộlectronique est dộdiộ la mộmoire de Laura Wisewell, notes sur la transcription ... par le Dộpartement des Mathộmatiques, Universitộ de Glasgow Des modications mineures ont ộtộ apportộes la prộsentation, lorthographe, la ponctuation et aux notations mathộmatiques Le A chier...