Paris, Jacques Chereau, 1747. 4to. Uncut and loose in old halfcalf-portfolio. A few leaves frayed in margins. Engraved title, engraved leaf of ""privilege Général"", engraved title:""Cours d'Architecture and engraved title. ""Essay sur..."" 22+21 pp. of engraved text and 65 (of 66) + 27 (in all 92) engraved plates. (pages numb. 1-150, plates numb. 1-66 and 27 unnumb.). 36 fine enraved vignettes in the text. Throughout engraved.