LettersDiscussion "A RARE PUBLICATION" By Veronica J. Sexton See allHide authors and affiliations Science 22 Sep 1933:Vol. 78, Issue 2021, pp. 266DOI: 10.1126/science.78.2021.266 Veronica J. Sexton 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.
Science Vol 78, Issue 202122 September 1933 Table of Contents Print Table of Contents Front Matter (PDF)