Letters Literature, Science, and Manpower By JOSEPH GALLANT See allHide authors and affiliations Science 21 Jun 1957:Vol. 125, Issue 3260, pp. 1261DOI: 10.1126/science.125.3260.1261-b JOSEPH GALLANT 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.