Meetings & Meeting ReportsSocieties and Academies COLUMBIA UNIVERSITY GEOLOGICAL JOURNAL CLUB By H. W. Shimer See allHide authors and affiliations Science 29 May 1903:Vol. 17, Issue 439, pp. 862DOI: 10.1126/science.17.439.862 H. W. Shimer Find this author on Google Scholar Find this author on PubMed Search for this author on this site Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears above.