Letters Letters to the Editor By C. Vance Haynes See allHide authors and affiliations Science 27 Mar 1970:Vol. 167, Issue 3926, pp. 1670-1671DOI: 10.1126/science.167.3926.1670-a C. Vance Haynes Department of Geological Sciences, Southern Methodist University, Dallas, Texas 75222Find 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.
Science Vol 167, Issue 392627 March 1970 Table of Contents Print Table of Contents Back Matter (PDF) Ed Board (PDF) Front Matter (PDF)