News & CommentScientific Events

THE MICHIGAN ACADEMY OF SCIENCE, ARTS AND LETTERS

See allHide authors and affiliations

Science  24 Jan 1930:
Vol. 71, Issue 1830, pp. 93-94
DOI: 10.1126/science.71.1830.93-a

This is a PDF-only article. The first page of the PDF of this article appears below.

PDF extract preview