The birth of chemistry / by G.F. Rodwell.

  • George Farrer Rodwell
Date:
1874
Catalogue details

Licence: Public Domain Mark

Credit: The birth of chemistry / by G.F. Rodwell. Source: Wellcome Collection.

    109/156 page 93
    souls of metals, and are given off during calcination. He also affirmed that silver is intermediate between mercury and other metals, just as the soul is inter- mediate between the spirit and the body. Arnoldus is said to have had for his pupil Pope John XXII., an accomplished alchemist, who left at his death eighteen Fig. 12.—An alchemist hermetically sealing a flask containing a solut'oii of gold. millions of florins, which the alchemists fondly cite as a proof of the possibility of transmutation. Our countryman, George Ripley, Canon of Brid- lington in Yorkshire (b. about 1460), wrote a poem on alchemy, and passed fur a successful disciple of the art, but we cannot point to a new fact which he elucidated. He divided all chemical operations into twelve processes—calcination, dissolution, separation,
    digitised image 1
    digitised image 2
    digitised image 3