ArticlesSpecial Article SOIL ACIDITY AND METHODS FOR ITS DETECTION By J. E. HARRIS See allHide authors and affiliations Science 02 Oct 1914:Vol. 40, Issue 1031, pp. 491-493DOI: 10.1126/science.40.1031.491 J. E. HARRIS 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.