Science Lectures for the People, Bände 7-8

absorption animals Arctic atmosphere beds birds bones brain bubble calcium CALIFORN called carbonic acid Carboniferous cave earth Cavendish cavern centre cerebellum cerebral hemispheres chemical constitution chemists coast colour comets contain creatures Cretaceous density deposits Devonian diamond discovery elementary bodies elements evidence existence expedition experiment extinct fact feet fishes forest fossil gases give Greenland heat hemispheres hyæna hydrogen illustration islands Kent's Cavern kind known land lecture light limestone lines liquid living mass matter means medulla oblongata metal metalloids meteorites Miocene nature nebula nebulæ observe Oolitic oxygen pass peculiar period plants Pole portion present probably Professor remains remarkable represented rocks screen shells ship side Silurian sledge species spectra spectroscope spectrum Spitzbergen stars substances suppose surface tail teeth temperature Triassic true tube valley vapour vegetable vessel whilst