Nature, Volume 73

acid action amount animals appears Association body British carried cause collected College complete connection considerable contains course deals December described determined direction discussion disease effect electric elements engineering examination existence experiments fact feet given gives illustrated important increase Institute interesting January knowledge known land lectures less light lines London matter means measured meeting method Museum nature North November observations obtained original period photographs physical plants position possible practical present probably produced Prof published question received recent recorded referred regard relation Royal scientific shown Society South species suggested surface taken temperature theory tion United University various volume whole