ArticlesAddress THE NATIONAL UNIVERSITY By Edmund J. James See allHide authors and affiliations Science 16 Aug 1912:Vol. 36, Issue 920, pp. 202-210DOI: 10.1126/science.36.920.202 Edmund J. JamesFind 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.