75/2522 [Mathematics]. Otjes, V. (18th cent.). "Gronden der Meetkunst." Manuscript, pen and ink on paper, dated "Den 6 December 1787" (fol.21), 2 parts in 1 vol., 102,(2 blank),(12) lvs., num. sm. mathematical drawings, contemp. vellum, folio.

- First 30 lvs. brittle along edges w. some minor loss of text first leaf.

= An 18th century mathematical manuscript consisting of 11 "Gronden der Meetkunst" in which its author, Volkert Otjes, most probably tried to simpifly Euclides' Elementen. The second part of the manuscript consists of the first 94 "Geometrische Questien door Marten Wilkens" (M. Wilkens, Arithemetica, ed. 1669?).