Commentary NOT TEN BUT TWELVE! + See all authors and affiliations Science 12 Sep 1919:Vol. 50, Issue 1289, pp. 239-242DOI: 10.1126/science.50.1289.239 William Benjamin SmithFind 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 50, Issue 128912 September 1919 Table of Contents Print Table of Contents Back Matter (PDF)
