[Main work of Bernard Nieuwentyt] Het regt gebruik der Werelt beschouwingen,

ter overtuiginge van ongodisten en ongelovigen aangetoont, door Bernard Nieuwentyt, M.D. Met kopere Platen. Den sesden druk. Amsterdam, A. Douci, 1754, (16),916,(18) p., with engraved frontispiece, title vignette, portrait of the author and 28 folding, engraved plates, contemporary blindstamped vellum, 4to.

Partly affected by damp, endpapers tender from boards/ with tear, vellum slightly bumpy/ soiled. The main work of this follower of Descartes and opponent of Spinoza, the first edition appeared in 1715. Bernard Nieuwentyt (1654-1718) was a doctor, philosopher and mathematician and one of the most important Dutch authors of the Age of Enlightenment.