Letters The Metric System and Professional Teaching By WM. H. SEAMAN See allHide authors and affiliations Science 12 Apr 1889:Vol. ns-13, Issue 323, pp. 289-290DOI: 10.1126/science.ns-13.323.289-a WM. H. SEAMANHoward Univ., WashingtonFind 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.