News & CommentScientific Events CLASSIFICATION OF LANDS BY THE GEOLOGICAL SURVEY Science 28 Feb 1919:Vol. 49, Issue 1261, pp. 210DOI: 10.1126/science.49.1261.210 Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears above.
Science Vol 49, Issue 126128 February 1919 Table of Contents Print Table of Contents Back Matter (PDF)