News & Comment SCIENTIFIC JOURNALS AND ARTICLES Science 02 Oct 1914:Vol. 40, Issue 1031, pp. 487-488DOI: 10.1126/science.40.1031.487 Article Info & Metrics eLetters PDF Article Information vol. 40 no. 1031 487-488 DOI: https://doi.org/10.1126/science.40.1031.487 PubMed: 17732994 Published By: American Association for the Advancement of Science Print ISSN: 0036-8075 Online ISSN: 1095-9203 Copyright & Usage: © 1914 Other Contributors: American Association for the Advancement of Science Author Information Altmetric Article usage Article lifetimeLast 6 monthsThis monthArticle usage: July 2007 to September 2020 AbstractFullPdf Jul 2007001 Oct 2007001 Aug 2008003 Mar 2009001 Apr 2009001 Jul 2009001 Oct 2011001 Nov 2011001 Jan 2012002 Oct 2012001 Jul 2013001 Sep 2013200 Nov 2013200 Dec 20131100 Feb 2014100 Apr 2014100 Oct 2014300 Nov 2014300 Mar 2015200 Apr 2015001 May 2015100 Sep 2015100 Jan 2016200 Jan 2017001 Apr 2017002 Aug 2018001 Feb 2019001 Mar 2020001 Sep 2020001 View PDF Extract