News & Comment NOTES AND NEWS See allHide authors and affiliations Science 24 Nov 1893:Vol. ns-22, Issue 564, pp. 293DOI: 10.1126/science.ns-22.564.293 Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears below.
Science Vol ns-22, Issue 56424 November 1893 Table of Contents Print Table of Contents Back Matter (PDF) Front Matter (PDF)
