Nature, Volume 54

acid action amount animals appears become body British carried cause character chemical College colour complete connection considerable contains course described determined direction effect electric evidence examination exhibited existence experiments fact give given illustrated important increase Institution interesting June known laboratory lead less light lines London Lord matter means measures meeting metal method Museum natural object observations obtained origin passed period photographs physical plate position possible practical present probably produced Prof published question rays received recent referred regard relation remarkable Röntgen Royal scientific seems Society South species suggested surface taken temperature theory tion tube University variation various volume whole