Schatkamer of de konst der stuurlieden - Vries, Klaas de 1662-1730 (s.l. s.n., 1774)
A fascinating manuscript course on navigation, astronomy, time calculations, geometry and shipping , including 2 volvelles, diagrams and other figures, partly based on the very rare first (1702) edition of De Vries's handbook, but not merely copying it.
The virtually unknown Klaas de Vries was a teacher of mathematics in Amsterdam.
Although inside it carries the title "Schatkamer ofte Konst der Stuurlieden", this manuscript doesn't merely copy the printed book: at least much of the text differs and also at least some of the tabular data, and some of the figures also have no direct equivalents in the printed book
Front part (249 pages) of the dos-à-dos binding contains calculations dating from 1749 onward, with the back part (33 pages) containing calculations for the years 1773 and 1774.
1 loose double sided page is dated 1786, and signed K. H. Gelling. The spine mentions "Gieters Stuurmans(schrift?)"
Dos-à-dos binding in white vellum
Keywords: 18th Century (1701-1800); Science; Geometry; Astronomy; Maritime transport; Netherlands