PT - JOURNAL ARTICLE ED - , TI - SCIENTIFIC JOURNALS AND ARTICLES AID - 10.1126/science.24.616.498 DP - 1906 Oct 19 TA - Science PG - 498--498 VI - 24 IP - 616 4099 - http://science.sciencemag.org/content/24/616/498.1.short 4100 - http://science.sciencemag.org/content/24/616/498.1.full SO - Science1906 Oct 19; 24