Nature, Volume 85

amount appears ball birds British carried cause changes chemical collection College committee complete connection considerable contains course dealing December described determined direction discussion disease edition effect electric Engineering evidence examination existence experiments fact further given gives heat illustrated important increase Institute interest knowledge known laboratory less light lines London matter means measures ment method Museum natural November object observations Observatory obtained organic origin period photographs physical plants position possible practical present Price probably problem produced Prof published question radiation recent record reference regard relation Royal scientific Society South species stars suggested surface taken temperature theory tion University various volume whole