Commentary RESEARCH IN THE FIELD OF AGRICULTURE By A. F. Woods See allHide authors and affiliations Science 20 Jan 1922:Vol. 55, Issue 1412, pp. 64-66DOI: 10.1126/science.55.1412.64 A. F. WoodsFind 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 above.