Association AffairsAAAS News Ideas Sought for Global Projects See allHide authors and affiliations Science 07 Mar 1986:Vol. 231, Issue 4742, pp. 1162DOI: 10.1126/science.231.4742.1162-a Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears below.
Science Vol 231, Issue 474207 March 1986 Table of Contents Print Table of Contents Ed Board (PDF) Front Matter (PDF)