Abstracts THE AMERICAN CHEMICAL SOCIETY By Charles L. Parsons See allHide authors and affiliations Science 02 Sep 1921:Vol. 54, Issue 1392, pp. 203-204DOI: 10.1126/science.54.1392.203 Charles L. Parsons Find 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.