Nature, Volume 90

action agriculture animals appears applied Association become body British cause cells changes chemical chemistry College considerable contains course dealing described direction discussion edition effect electric engineering evidence existence experiments fact further give given hand heat illustrated important increase Institute interesting Italy knowledge known lectures less light lines living London marks material mathematical matter means measure meeting method nature North observations obtained occur October organisms origin period physical plants Pleistocene possible practical present Price probably problem produced Prof published question received recent recorded reference regard relation remarkable Royal schools scientific Society South species structure suggested surface taken temperature theory tion University various volume waves whole