Medieval architecture, its origins and development, with lists of monuments and bibliographies (1909)
Porter, Arthur Kingsley, 1883-1933 · New York, The Baker and Taylor Company · leaf 47
I 1 1 1 1 1 1 1 1 JL 1 1 _u^v\4/c/^ i i i i i i i i i i i—j … III. 6. — Diagram of the Arch and Flat Arch opening by means of several blocks of stone, when for any rea-son it is undesirable to employ a lintel or a wooden construction.From the illustration (111. 6) it will be seen that these blocks, 1 The arch at Bet Khallaf, Egypt (xxx century B.C.), is the…
Architecture, Medieval
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