News & CommentScientific Notes and News GENERAL See allHide authors and affiliations Science 17 Sep 1897:Vol. 6, Issue 142, pp. 442-445DOI: 10.1126/science.6.142.442 Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears below.
Science Vol 6, Issue 14217 September 1897 Table of Contents Print Table of Contents Back Matter (PDF) Ed Board (PDF)