Nature, Volume 52

acid alternating current aluminium animals appears argon atmosphere atomic atomic weight body British carbon chemical chromospheric Cineraria cleveite College colour condensation connection contains Cretaceous Crustacea curve described electric engine evidence exhibited experiments fact fauna formation fossil galvanometer gases geological give given heat helium hydrogen hydrogen lines illustrated important interesting investigation iron laboratory light lines London magnetic matter means measure ment metals meteoritic Meteorological method motion Museum nature nebula nitrogen nitrous oxide observations Observatory obtained origin oxide oxygen paper phenomena photographs physical plants plates position present President pressure produced Prof published quantity recent reference remarkable rocks rotation Royal Society scientific Sir John Lubbock species specimens spectra spectroscope spectrum stars surface temperature theory tion trilobites tube University uraninite variable stars velocity volume