Nature, Volume 87

action Agriculture animals appears application arranged Association British carried cause chemical collection College complete connection considerable considered contains course dealing described determined direction discussion effect electric engineering evidence examination existence experiments fact further give given illustrated important increase indicated institution interesting Italy July knowledge known land less light lines London matter means measure meeting ment method Museum nature object observations obtained origin period physical plants position possible practical present Price probably problems produced Prof published question recent record reference regard relation represented rocks schools scientific Society solution South species suggested supply taken tests theory tion University various volume whole