The New Encyclopaedia Britannica, Volume 4

acid activity administration ammonia army atomic orbitals became benzene bonds Buddhist called carbon atoms cells central centre Ceylon Ch'in Chaetognatha Charadriiformes Charles Chaucer chemical bonds chemical reactions chemistry chemoreception Chess Chicago children's literature Chile China Chinese chloride Chou common compounds covalent covalent bonds cultural disease drugs dynasty early economic electrons elements emperor energy example fluorine groups helium Hopeh hydrogen important increased industry insects involved ions king known land large number major mass materials ment metal methods military modern molecular molecules nitrogen northern nuclei occur officials orbitals organic oxide oxygen party percent period political population provinces quartets reactants receptors region reign result river separation Shang Sinhalese social sodium sodium chloride southern species structure substances sulfonamide sulfur sulfuric acid Szechwan T'ang Taoist temperature tion trans Tsung turtles Yangtze