Science News SCIENCE NEWS Science 07 Nov 1924:Vol. 60, Issue 1558, pp. x-xiiDOI: 10.1126/science.60.1558.0x Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears above.
Science Vol 60, Issue 155807 November 1924 Table of Contents Print Table of Contents Front Matter (PDF)