Nature, Volume 72

acid action amount appears applied body British cause changes chemical College complete connection considerable considered contains continued course dealing described determined direction discussion effect electric engineering evidence examination existence experiments fact feet give given illustrated important increase influence Institute interesting June known less light London material matter means measured meeting method Museum nature Notes observations Observatory obtained origin period photographs physical plants plates position possible practical present president pressure probably problems produced Prof published question recent recorded referred regard relation remarkable Royal School scientific shown Society South species stars suggested surface taken temperature theory tion University various volume whole