NATUURKUNDIGE EN OPHELDERENDE AANMERKINGEN over het Eerste en Tweede Deel /Derde en Vierde Deel VAN J. F. MARTINET'S KATECHISMUS DER NATUUR, door J. DE VRIES. (ENLIGHTENING COMMENTS on the First, Second, Third and Fourth Part of J.F. MARTINET'S CATECHISM OF NATURE, by J. DE VRIES. FOUR PARTS IN TWO OCTAVO VOLUMES. AMSTERDAM: Joannes van Selm, MDCCLXXIX (1779). TEXT in DUTCH. A Critical and Expansive Study by J. De Vries of JOHANNES FLORENTIUS MARTINET'S work KATECHISMUS DER NATUUR (CATECHISM OF NATURE). Two Volumes, hardcovers, leather spines and corners with marbled paper covered boards, the spines have five raised bands and are decorated in gilt, black leather title labels on spines, 5x9 inches. Pagination: Volume I: XIV, [2], 198, [2]. Volume II: [VI], 192. GOOD condition. The covers have scrapes and rubs to the boards and edges, including the loss of the paper covering in various places; the spine title labels are mostly worn away; nonetheless the covers are sturdy, attractive, and are doing their job well. Internally very nice, some light foxing and offsetting to the endpapers, otherwise the pages are lovely, bright, tight, clean and unmarked. A solid, nice, two volume set.