2344 Sebald SCHWÆRTZER. Chrysopoeia Schwærtzeriana. Das ist: Sebaldi Schwærtzers, ehemahligen berühmten Churfürstl. Sächsischen Artisten und würcklichen Adepti, Manuscripta, von der wahrhafften Bereitung des Philosophischen Steins, wie selbige vor diesem mit seiner eigenen Hand entworffen, und bey dem Chur-Fürstl. Sächsischen Hause in Originali verwahrlich aufbehalten worden, Nebst dem rechten zu solchen Manuscriptis gehörigen Schlüssel; Auch unterschiedlichen Abrissen der darzu dienlichen Ofen, aus einer unverfälschten durch viele Mühe und Unkosten erlangten Copia nunmehro jederman vor Augen geleget, und mit einigen nützlichen Anhängen von verschiedenen curieusen Processen vermehret. 8° Hamburg: bey Samuel Heil 1718 Ferguson Young [Illustrations:- 1. Folding sheet inserted at end of preliminary material. Engraving. 188x270mm. No. 1. A drawing of an elaborate furnace which is heated over a series of lamp wicks. n. 2. (Gold) Drawing of the wall of a furnace with three fire doors. n. 3. (Silver) Drawing of the wall of a furnace with two fire doors. 2. Folding sheet inserted after item 1. Engraving. 144x314mm. No. 2. A cutaway drawing of a great cubical furnace. As the symbol for gold appears alongside this is probably for extracting gold. It links with n. 2 in item 1. No. 3. A cutaway drawing of a great cubical furnace, similar in form to No. 2. As the symbol for silver appears alongside this is probably for extracting silver. It links with n. 3 in item 1. 3. Folding sheet inserted after item 2. Engraving. 125x285mm. No. 4. A universal furnace in which all operations can be performed. This has three towers. Beside this is a sand bath with four of the covers which are placed on top of the bath and allow from 1 to 4 items to be heated simultaneously.]