Two works in six vols.: (1) Martinet, J.F. Katechismus der Natuur

Zesde (...) druk. Zaltbommel, J.Noman, 1827-1829, 4 vols., w. 4 engr. frontisp. and 20 fold. engr. pls. (6x col.), cont. unif limp marbled boards w. paper letterpieces on spines. Modern library stamps on (h)titles, library rules pasted on verso title (vol. 1), htitle (vol. 3) and first page of the table of contents (vol. 4), labels on frontcovers and spines. Untrimmed copy. (2) J. de Vries. Natuurkundige en ophelderende opmerkingen over het eerste en tweede/ derde en vierde deel van J.F. Martinet's Katechismus der Natuur. Amst., J van Selm, 1778-1779, 4 parts in 2 vols., cont. unif. hcalf, gilt and ribbed spines w. mor. letterpieces. The 2nd vol. waterst. in margins at the beginning and end (only sl. affecting printed lvs). Both vols. w. imperfections of paper over boards and a bit worn along extremities.

(total 2 works in 6 vols.)