News & Comment UNIVERSITY AND EDUCATIONAL NEWS Science 01 Feb 1901:Vol. 13, Issue 318, pp. 199-200DOI: 10.1126/science.13.318.199 Article Info & Metrics eLetters PDF Article Information vol. 13 no. 318 199-200 DOI: https://doi.org/10.1126/science.13.318.199 Published By: American Association for the Advancement of Science Print ISSN: 0036-8075 Online ISSN: 1095-9203 Copyright & Usage: © 1901 Other Contributors: American Association for the Advancement of Science Author Information Altmetric Article usage Article lifetimeLast 6 monthsThis monthArticle usage: June 2007 to August 2018 AbstractFullPdf Jun 2007001 Oct 2007001 May 2008001 Mar 2009001 Jul 2009001 Oct 2011001 Nov 2011001 Dec 2011001 Jan 2012001 Mar 2012001 Nov 2012001 Jul 2013001 Sep 2013300 Dec 20131100 Feb 2014100 Apr 2014100 Oct 2014100 Nov 2014200 Dec 2014300 Mar 2015101 Apr 2015100 May 2015100 Sep 2015100 Oct 2015101 Dec 2015200 May 2016001 Apr 2017002 Aug 2018001 View PDF Extract