News & CommentScientific Events THE PERMANENT SCIENCE FUND OF THE AMERICAN ACADEMY OF ARTS AND SCIENCES See allHide authors and affiliations Science 25 Apr 1941:Vol. 93, Issue 2417, pp. 392-393DOI: 10.1126/science.93.2417.392-a Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears below.
Science Vol 93, Issue 241725 April 1941 Table of Contents Print Table of Contents Back Matter (PDF) Front Matter (PDF)