Science News ITEMS Science 23 Sep 1927:Vol. 66, Issue 1708, pp. xivDOI: 10.1126/science.66.1708.0xiv Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears above.
Science Vol 66, Issue 170823 September 1927 Table of Contents Print Table of Contents Front Matter (PDF)