Quaestiones geometricae
Subtitle: in Euclidis et P. Rami Stoicheiōsin
By: in vsum scholae mathematicae collectae à doctore Petro Ryff ... quibus Geodaesiam, adjecimus per vsum radii geometrici
Contributors: Wechel, family of printers, printer
Publisher: In officina Wecheliana, apud Danielem & Dauidem Aubrios, & Clementem Schleichium
Published: 1621
Place of publication: Francofvrti
Language: lat
Number of pages: 135
Subjects: Geometry; Early works to 1800
Notes: Title vignette (printer's device): repeated on verso of p. 135.

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