It is remarkable that no use was made in Greece of baked bricks before the period of Roman domination. Roof-tiles of terra-cotta were in use from an early period, and Greek travelers to Babylonia brought back word of the use of baked bricks in that country. Nevertheless Greek builders showed no disposition to adopt baked bricks for their masonry.
This probably hangs together with another important fact, the absence of lime-mortar from Greek architecture. Lime-stucco was in use from time immemorial. But lime-mortar, i.e., lime mixed with sand and used as a bond for masonry, is all but unknown in Greek work. Consequently in the walls of temples and other carefully constructed buildings an elaborate system of bonding by means of clamps and dowels was resorted to. Fig. 46 illustrates this and some other points. The blocks of marble are seen to be perfectly rectangular and of uniform length and height. Each end of every block is worked with a slightly raised and well-smoothed border, for the purpose of securing without unnecessary labor a perfectly accurate joint. The shallow holes, III, III, in the upper surfaces are pry-holes, which were of use in prying the blocks into position. The adjustment having been made, contiguous blocks in the same course were bonded to one another by clamps, I, I, embedded horizontally, while the sliding of one course upon another was prevented by upright dowels, II, II. Greek clamps and dowels were usually of iron and they were fixed in their sockets by means of molten lead run in. The form of the clamp differs at different periods. (...)
 The solitary exception at present known is an Attic tomb built of crude bricks laid in lime-mortar.
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