Architecture; an introduction to the history and theory of the art of building
A 1912 architecture textbook by W. R. Lethaby, published in London by Williams and Norgate, written as an introduction to the history and theory of building for students of the subject. Its pictures are small line drawings of structural forms: a round arch with voussoirs, a gateway with a flanked arch, an interior colonnade of arched bays, and a plan with rows of piers. A designer could take from them the clear diagrammatic way the drawings isolate arch and column geometry.
