The New Encyclopaedia Britannica, Volume 4

19th century acid activity administration ammonia army atomic orbitals became benzene bonds Buddhist called carbon atoms cells central centre Ceylon Ch'in Chaetognatha Charadriiformes Charles Chaucer Chekiang chemical bond chemical reactions chemistry chemoreception Chess Chicago children's literature Chile China Chinese chloride chlorine Chou common complex compounds covalent covalent bonds cultural disease drugs dynasty early economic electrons elements emperor energy example fluorine groups Hopeh hydrogen important increased industry insects involved ions king known Lake land large number Lo-yang major mass materials ment metal methods molecular molecules nitrogen northern nucleus occur officials orbitals organic oxide oxygen party percent period political population provinces quartets reactants receptors region reign result river separation Shang Sinhalese social sodium southern species structure substances sulfonamide sulfur sulfuric acid Szechwan T'ang Taoist temperature tion Tsung turtles Yangtze