Cover, Editorial, Letter to the Editor

Becoming A Geologist: Florence Bascom In Wisconsin, 1874-1887

Middle Nineteenth-Century Crinoid Studies Of Thomas Austin, Sr. And Thomas Austin, Jr.: Newly Discovered Unpublished Materials

Correspondence as a Window on the Development of a Discipline: Brongniart, Cleaveland, Silliman and the Maturation of Mineralogy in the First Decades of the Nineteenth Century

Silas Watson Ford: A Major But Little-Known Contributor to the Cambrian Paleontology of North America

‘Plains-Type Folds’ in the Midcontinent Region (U.S.A.): Chronicling A Concept

The Rise of the Theory of Differentiation in Igneous Petrology (Part 2 of 2)

Focus Book, Announcements, Book Reviews, Interesting Publications, Treasurer's Report, Notes on Contributors