Beschrijving
's Gravenhage/Amsterdam, Gebroeders Van Cleef, 1837-1838-1839, 5th edition, complete three parts in one volume with as third part ‘Antwoorden (…)’, 3rd edition, 's Gravenhage/Amsterdam, Gebroeders Van Cleef, 1839, written by Gerrit Ramakers (-ca. 1865), xxiv,176,(3)+xii,228+iv,96 pages, full tooled leather binding, gilt lettering and ornaments on spine, half page waterstain on first 20 pages, the author Jacob de Gelder (1765-1848) was professor in mathematics in Leiden, early and extensive work on the essence of mathematics, with the scarce third part containing the answers to the calculations presented in the first two parts, interesting book.