News & CommentScientific Events THE EXPEDITION TO WESTERN COLORADO OF THE FIELD COLUMBIAN MUSEUM Science 22 Sep 1939:Vol. 90, Issue 2334, pp. 266DOI: 10.1126/science.90.2334.266 Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears above.
Science Vol 90, Issue 233422 September 1939 Table of Contents Print Table of Contents Back Matter (PDF) Front Matter (PDF)