Note 32 — Chapter I

Cf. Ch. II. p. 28. It should also be observed that these forms of construction do not invariably denote successive steps of antiquity and the art of building. Unhewn boulders, rough quarried stones, and those which had a polygonal cleavage due to their nature, were often used for convenience by builders who were quite able to work quadrangular blocks, as is proved by walls in which the former kinds are placed above the last. See Mr. E. H. Bunbury's "Cyclopean Remains in Central Italy," in the 'Classical Museum,' 1845, vol. ii. pp. 147. seqq., and the article MURUS in Dr. Smith's 'Dictionary of Greek and Roman Antiquities.'