J.J. Stevenson

Preface

As GSA celebrates its 125th Anniversary, GSA Today is taking a look back at key presidential address articles that demonstrate the spirit, work, and thought put into creating the Society as it is today. Most presidential addresses are posted online at www.geosociety.org/aboutus/pastPresidents.htm.

¹ Read before the Society on 28 December 1898; originally published in GSA Bulletin, v. 10, p. 83–98 (26 February 1899).