(1751). DESAGULIERS (John Theophilus). COURS DE PHYSIQUE EXPERIMENTALE. Paris, Jacques Rollin, 1751. 2 volumes in-4°, marbled calf, spine ribbed and decorated, red edges (contemporary binding). First French edition translated from English by the Jesuit Father Pezenas. This important treatise, first published in London in 1725, is generously illustrated with 78 DELIGHTING GRAVE PLANCHES illustrating the author's experiments. Scattered foxing, one plate with a hole along the length, another with a gap in the margin, headbands damaged, one spine split.