626.2 Gerard DORN. Clavis totius Philosophiae Chymisticae, per quam obscura Philosophorum dicta referantur. Compendium tres libros continens, partim physicos, medicos, & pro maiori parte chymicos. Cuius Summarium versa pagella indicabit. 16° Lugduni, apud hæredes Iacobi Iunctæ 1567 Young Nat Union Cat [Illustrations:- 1. p27. Woodcut. 88x45mm. A cube with labelled faces stands above an open cubic box with labelled faces, within which it appears to fit. 2. p58. Woodcut. 90x63mm. A five tiered furnace with distillation apparatus using different methods of cooling the condensate, including the use of a water barrel. 3. p63. Woodcut. 90x63mm. A complex group of furnaces with a tall chimney. Different types of process are undertaken including circulation, and distillation on a water bath. 4. p105. Woodcut. 90x61mm. Above is a square sided furnace within which a large open pot is heated. Below a cylindrical furnace heats a round flat dish.]