Commentary THE USE AND ABUSE OF THE GENUS By Witmer Stone See allHide authors and affiliations Science 30 Apr 1920:Vol. 51, Issue 1322, pp. 427-429DOI: 10.1126/science.51.1322.427 Witmer StoneFind 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.