News & Comment News and Notes Science 23 Oct 1953:Vol. 118, Issue 3069, pp. 479-483DOI: 10.1126/science.118.3069.479 Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears above.
Science Vol 118, Issue 306923 October 1953 Table of Contents Print Table of Contents Back Matter (PDF) Ed Board (PDF) Front Matter (PDF)