Note 1751 — BOOK XXXIV. THE NATURAL HISTORY OF METALS. (continued 2)
John Bostock translation
By this process a considerable portion of the sulphur is expelled, so as to cause the orpiment to approximate to the state of arsenic.—B.
John Bostock translation
By this process a considerable portion of the sulphur is expelled, so as to cause the orpiment to approximate to the state of arsenic.—B.