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172 History op Art in Antiquity. system, in which the units are cut the exact shape required for the place they are to occupy ; all we find here are overhanging stones Fig. 84.— Detail of portab of the palace at FcrOx- AbaJ. DlftVLAPOV, LArt MliyNV» torn. iv. Fi^ 35, 26. or pendentives, if preferred, so rudely set that they would not hold together any time, but for the supreme might of mortar. Such care- lessness as this leaves an impres- sion of decadence rather than of work accom- plished in the«^e of the Achaeme- nidx, when great care was taken with the construc- tion ; evidenced in the nioniimcntswe have passed in re- view in the course of our systematic analysis respecting the forms and processes of l^ersian architecture. Flu. 85. — Sarvistan. Column and spiincing of tlic arches of one oftbelMlb. Am/., Plate VI. i^ iyui^cd by Googl