Nature, Volume 87

A. C. Haddon acid Africa Agriculture algæ animals apparatus appears Association atomic atomic weights British Bushongo chemical chemistry College colour comet commissioners considerable contains course dealing described direction discussion effect electric electrolytes engineering examination experiments fact Geographical geological give given helium igneous rocks illustrated important institution interesting investigation July laboratory land large number lecture London magnetic mathematical matter means ment Meroë method Museum National Physical Laboratory nature observations Observatory obtained osmotic pressure paper period photographs physical plankton plants plates practical present Price problems produced Prof quaternions question radio-active radium recent recognised record reference regard rocks Royal scientific Scotland Society solution South species supply temperature tests theory thorium tion tuberculosis turbines University various Veddas velocity volume W. H. Perkin