Letters Letter to the Editor By Benjamin L. Schwartz See allHide authors and affiliations Science 31 Mar 1972:Vol. 175, Issue 4029, pp. 1417DOI: 10.1126/science.175.4029.1417-b Benjamin L. SchwartzFind 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 175, Issue 402931 March 1972 Table of Contents Print Table of Contents Back Matter (PDF) Ed Board (PDF) Front Matter (PDF)
