LettersDiscussion and Correspondence PALEOBOTANY AS VIEWED BY TWO GEOLOGISTS By G. R. Wieland See allHide authors and affiliations Science 06 May 1921:Vol. 53, Issue 1375, pp. 437-439DOI: 10.1126/science.53.1375.437-a G. R. Wieland Find this author on Google Scholar Find this author on PubMed Search for this author on this site Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears above.