Letters Intransigent Conservationists By George Elwers See allHide authors and affiliations Science 21 Aug 1970:Vol. 169, Issue 3947, pp. 717-718DOI: 10.1126/science.169.3947.717-e George Elwers 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.