London, Wellcome Institute MS. 2324. 726 pages. 165x105mm. 18th Century [1738] F., J. V. and W., J. Chymische Schrifften. [Illustrated by rough pen-drawings of alchemical apparatus. The text, in several hands, is in German and Latin, but one article is in Italian and another in French. The first part consists chiefly of receipts for making artificial gems etc., the remainder is concerned with chemical and alchemical processes.]