Illustrated Companion to the Latin Dictionary/Structura

This article incorporates text from a publication now in the public domain: Rich, Anthony (1849). The illustrated companion to the Latin dictionary, and Greek lexicon. p. vi. OCLC 894670115. https://archive.org/details/illustratedcompa00rich. 

STRUCTU'RA. Generally, the putting together of things in regular order; whence the term is specially applied to designate masonry, or the constructive arrangement of stones in a wall. (Vitruv. ii. 8. Plin. H. N. xxxvi. 51.) Six different styles are enumerated in the practice of the Roman and Greek architects, each presenting a distinct pattern to the eye, as exhibited in contrast by the annexed engraving (Structura/1.1); viz. 1. reticulata, reticulated, which has a chequered pattern like the meshes of a net, A. 2. caementicia antiqua or incerta, irregular masonry of stones, not squared nor cut into any certain form, B. 3. isodomum, ashlar, of large stones, and in which all the courses are of the same height, C; 4. pseudisodomum, also ashlar, and of large stones, but in which the courses are of different relative heights, D. 5. emplecton, in which both the outside surfaces of the wall are formed of ashlar, E, bound together by girders, F, and the central part filled in with rubble, G. 6. diamicton, which is the same as the last, without the girders.

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  Structura/1.1