Apparatus and operations of alchemists, [ 90.]
Art, the sacred, [ 122.]
Atom, meaning given to word by Dalton, [ 173.]
Atomic theory of Greeks, [ 16.]
—— additions made to, by Dalton, [ 21.]
—— as described by Lucretius, [ 19.]
Atomic weight, [ 174.]
Atoms and electrons, [ 190,] [ 198.]
Bacon's remarks on alchemy, [ 95.]
Balsamo, Joseph, [ 110.]