LettersDiscussion and Correspondence MUNICIPAL OBSERVATORIES By Nevin M. Fenneman See allHide authors and affiliations Science 23 Dec 1921:Vol. 54, Issue 1408, pp. 630-631DOI: 10.1126/science.54.1408.630-a Nevin M. Fenneman 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.