LettersDiscussion STRIATED COBBLES FROM TEAY VALLEY, WEST VIRGINIA By Julian J. Petty See allHide authors and affiliations Science 09 May 1930:Vol. 71, Issue 1845, pp. 483DOI: 10.1126/science.71.1845.483 Julian J. Petty 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.