SEMPLE, George (1700?-1782?). A Treatise on Building in Water. Dublin: for the Author by J.A. Husband, 1776. 4° (260 x 208mm). 63 engraved plates. Contemporary calf (slightly rubbed), spine gilt in compartments, red lettering-piece. Provenance: unidentified armorial bookplate. FIRST EDITION. Harris 815.
Stephen SWITZER (1682?-1745). An universal System of Water and Water-works. London: for Thomas Cox, 1734. 2 volumes, 4° (255 x 198mm). Engraved frontispiece and 61 plates by Toms, 48 folding (one loose, 1 torn into illustration, some leaves slightly soiled and spotted). Contemporary calf (rebacked with calf, some corners repaired). Berlin Kat. 3614. (3)