Meetings & Meeting ReportsSocieties and Academies

THE BIOLOGICAL AND GEOLOGICAL SECTION OF THE ACADEMY OF SCIENCE AND ART OF PITTSBURG

See allHide authors and affiliations

Science  12 Mar 1909:
Vol. 29, Issue 741, pp. 440
DOI: 10.1126/science.29.741.440-a
PDF extract preview

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