LettersDiscussion and Correspondence THE CANNONBALL LANCE FORMATION By W. D. Matthew See allHide authors and affiliations Science 08 Jul 1921:Vol. 54, Issue 1384, pp. 27-29DOI: 10.1126/science.54.1384.27-a W. D. Matthew 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.