Kathode rays, [ 188.]
Language of alchemy, [ 96.]
—— purposely made misleading, [ 36.]
Lavoisier on calcination, [ 153,] [ 155.]
—— his use of word element, [ 194.]
—— his use of word principle, [ 163,] note.
—— on object of chemistry, [ 160.]
—— on oxygen, [ 155.]
—— on systems in science, [ 163.]