Nature, Volume 72

acid actinium action appears Astronomical atoms benzene British Cape Colony carbon centre chemical chemistry College colour committee connection contains curve dealing described direction discussion disease effect electric engineering examination experiments fact feet geology give given hydrogen illustrated important increase India Institute instruments interesting investigation James Dewar June laboratory larvæ lectures London magnetic mathematical matter means measured ment Messrs meteorological method Museum nature nitrogen observations Observatory obtained October 19 optical paper photographs physical plants plates practical present president pressure probably produced Prof published quaternion radiation radio-activity radium rainfall recent referred refraction regard remarkable scientific Sir William White solar Solar Eclipse South Africa species specimens spectroheliograph stars steel surface telegraphy temperature theory tion tuberculosis University Variable Stars various volume White Rhinoceros