LettersDiscussion and Correspondence THE ARTIFICIAL PRODUCTION OF MUTANTS See allHide authors and affiliations Science 13 Sep 1907:Vol. 26, Issue 663, pp. 349-350DOI: 10.1126/science.26.663.349-a V. M. SpaldingFind 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 below.