John Rennie, 1761-1821

abutments actual appears Aqueduct arch architecture assistants Avon Canal beam Boulton bridge building built called carried cast cast-iron Company completed considered construction continued contractors contracts cost course described direct Docks drawings East Lothian effect embankment employed erected estimate Examination example executed existing extensions face forces further George give hands Harbour improvements increase interest iron John Rennie joints Kennet and Avon known Lancaster Canal later letter lighthouse London machinery machines masonry material means mechanical mentioned miles mill natural Navigation necessary never original particular person plans Plans and estimate Plate practical prepared present proportion proposed pumping recommends Rennie's Report resident engineer River road Robison Rock scheme shows side Stevenson stone structures supplied theory tion walls Watt wheel whole writing