Congrès international des architectes : tenu à Paris du 29 juillet au 3 août 1878
This is a proceedings volume from the 1878 International Congress of Architects held in Paris during the Exposition universelle, published in Paris by the Imprimerie nationale in 1881 for architects and scholars. Its pictures are plain black-and-white ground plans of churches and a fan-vaulted cathedral plan with pews and keyed labels, showing how a building's layout reads as a diagram a designer could borrow for spatial structure.
