Science News SCIENCE NEWS See allHide authors and affiliations Science 08 Feb 1935:Vol. 81, Issue 2093, pp. 5-7DOI: 10.1126/science.81.2093.5 Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears below.
Science Vol 81, Issue 209308 February 1935 Table of Contents Print Table of Contents Back Matter (PDF) Front Matter (PDF)
