Abstracts THE AMERICAN CHEMICAL SOCIETY + See all authors and affiliations Science 24 Dec 1920:Vol. 52, Issue 1356, pp. 612-614DOI: 10.1126/science.52.1356.612 H. C. HamiltonFind this author on Google Scholar Find this author on PubMed Search for this author on this site Charles L. ParsonsFind 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 52, Issue 135624 December 1920 Table of Contents Print Table of Contents Back Matter (PDF)
