News & CommentQuotations THE NATIONAL BOTANIC GARDEN See allHide authors and affiliations Science 22 Oct 1920:Vol. 52, Issue 1347, pp. 387DOI: 10.1126/science.52.1347.387-a Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears below.
Science Vol 52, Issue 134722 October 1920 Table of Contents Print Table of Contents Back Matter (PDF)
