Articles Movement of Organic Substances in Trees See allHide authors and affiliations Science 13 Jan 1961:Vol. 133, Issue 3446, pp. 73-79DOI: 10.1126/science.133.3446.73 Martin H. ZimmermannFind this author on Google Scholar Find this author on PubMed Search for this author on this site Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears below.
Science Vol 133, Issue 344613 January 1961 Table of Contents Print Table of Contents Ed Board (PDF) Front Matter (PDF)