Nature, Volume 94

action Agriculture animals appears applied Association Australia become body British carried cause changes character chemical College connection contains course deal described determined direction discussion effect engineering evidence examination experiments fact further give given illustrated important included increase Institute interesting kind knowledge known land less lines living London material matter means measures meeting ment method nature object observations obtained October organism origin period physical plants plates position possible practical present Price probably problems produced Prof published question received recent records reference regard relation scientific Society soil South species stress supply surface taken temperature theory tion University various whole