Book ReviewsScientific Books SCIENTIFIC BOOKS See allHide authors and affiliations Science 04 Jul 1941:Vol. 94, Issue 2427, pp. 19-20DOI: 10.1126/science.94.2427.19 Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears below.
Science Vol 94, Issue 242704 July 1941 Table of Contents Print Table of Contents Back Matter (PDF) Front Matter (PDF)
