Nature, Volume 81

amount animals appears applied Association atom become body British carried cent chemical collection complete connection considerable considered contains course deal described detail determined direction discussion effect electric energy engine evidence existence experiments fact give given illustrated important increase indicate Institute interesting July knowledge known less light lines London maps material matter means measured method Museum nature observations obtained organic origin period physical plants position possible practical present pressure Price probably problems produced Prof published question recent record reference regard relation remarkable schools scientific shown Society solution South species substances success suggested surface survey taken temperature theory tion United University various volume whole