SIMSON, Robert (1687-1768). Opera quaedam reliqua, Glasgow: Robert & Andreas Foulis, 1776, 4° (239 x 180mm.), FIRST EDITION, engraved portrait frontispiece, illustrations in the text (occasional spotting & staining), contemporary crimson straight-grained morocco gilt (spine and extremities rubbed, small parts of spine label torn away), g.e. Mr. Steuart, bookplate.