Nature, Volume 93

appears application atomic British carried changes classes collection College committee complete connection considerable contains continuation course deal Department described determined direction discussion edition effect electric Engineering evidence existence experiments fact field further given gives Government illustrated important increase industry INSTITUTION interesting known laboratory lectures less light lines London March material matter means measures ment metals method nature observations obtained origin period physical plants plates position possible practical present Price probably problems produced Prof published received recent recorded reference regard relation represented Royal schools scientific shown Society species stars surface taken temperature theory tion University various volume whole