Basil Valentine, his description of the three principles, [ 51.]
—— his description of the four elements, [ 49.]
—— some of his discoveries, [ 88.]
Becquerel, his discovery of radiation of uranium, [ 181.]
Body, soul, and spirit of things, alchemical doctrine of, [ 48.]
Boyle, on calcination, [ 128.]
—— on combustion, [ 141.]
—— on elements, [ 161.]
—— on the "hermetick philosophers," [ 95.]
—— on the language of the alchemists, [ 55.]