A treatise on building in water
A treatise on building in water by George Semple, published in 1780 and printed for the author, is a technical manual on constructing foundations and structures in wet ground and water. Its plates are engineering plans and elevations of cofferdams, piers and masonry courses, drawn in fine black line with hatched fills and lettered keys. A designer could take from them the clean geometry of stone courses, arched bridge piers and circular enclosures as precise plan-view graphics.
