Book Reviews Scientific Book Register Science 12 Aug 1949:Vol. 110, Issue 2850, pp. 172DOI: 10.1126/science.110.2850.172 Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears above.
Science Vol 110, Issue 285012 August 1949 Table of Contents Print Table of Contents Back Matter (PDF) Ed Board (PDF) Front Matter (PDF)