Science Lectures for the People

absorption amongst ancient animal beds bones bright lines bromine burning calcium call your attention carbon Carboniferous chemical constitution chemical elements chemists chlorine chromosphere colour colourless comets compounds conclusion coronal atmosphere creatures Cretaceous crust Cuttle-fishes density deposits Devonian diamond discovered earth elementary bodies elements Eningen Eocene evidence evolution exactly existence experiment exterior fact falling stars feet fishes fossil gases geologist heat Hipparion hydrogen hypothesis incandescent inches interior planets iron known last lecture Lavoisier light limestones living magnesium mass matter means metal metalloids meteorites Miocene nebula observe Oolitic organisation oxygen Paleozoic particles peculiar period portions probably Professor question remarkable represented reptiles rings rocks Roscoe screen shells Silurian sodium solar solid species specific gravity spectra spectroscope spectrum strata substances tail teeth telescope temperature Tertiary Triassic Trilobite true types vapour vegetable vibrations whilst