Quaestiones geometricae, in Euclidis & P. Rami stoicheiōsin
By: in usum scholae mathematicae collectae à doctore Petro Ryff ... ; quibus Geodaesiam, adjecimus per usum radii geometrici
Contributors: Rötel, Kaspar, printer; Pressius, Johannes, bookseller
Publisher: Sumptibus Johannis Pressii, typis Caspari Roetelii
Published: 1649
Place of publication: Francofurti [Frankfurt am Main]
Language: lat
Number of pages: 135
Subjects: Geometry; Early works to 1800
Other titles: Geodaesia.
Work titles: Quaestiones geometricae
Notes: Printer's device on t.-p., repeated in a larger size on last page.

The instrument described in the second part is a kind of Jacob's staff.