This Week in Science This Week in Science Science 06 Sep 1985:Vol. 229, Issue 4717, pp. 911DOI: 10.1126/science.229.4717.911 Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears above.
Science Vol 229, Issue 471706 September 1985 Table of Contents Print Table of Contents Back Matter (PDF) Ed Board (PDF) Front Matter (PDF)