. An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth. walls consisting of enormous blocks of stone, and usuallyvery high. Remains of them are still to be seen at Volterra {fg. 108.), Cortona, Eiesole [Jig. 109.), &c. Wocnibus, says Al- berti ( De Re jEdtJic. lib. vii. c. 2.) ve- terinn pracsertim populi Etruri:e quad- ratum eumdemque vastissimum lapidem probavere. In the walls of Cortona some of the stones are upwards of 22 Roman feet in length, and from 5 to 6 ft. high, and in them neither cram))s nor
. An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth. walls consisting of enormous blocks of stone, and usuallyvery high. Remains of them are still to be seen at Volterra {fg. 108.), Cortona, Eiesole [Jig. 109.), &c. Wocnibus, says Al- berti ( De Re jEdtJic. lib. vii. c. 2.) ve- terinn pracsertim populi Etruri:e quad- ratum eumdemque vastissimum lapidem probavere. In the walls of Cortona some of the stones are upwards of 22 Roman feet in length, and from 5 to 6 ft. high, and in them neither cram))s nor cement appear to have been emjjloyed. The walls of Volterra are built after theHg. ins. WAM. AT voLTEHBA. sauic gigautlc fashioH. In the earliest »? »-?-.,«.sjiecimens of walling, the blocks of stone were of an irregular polygonal form, and so dis-p,;sed as that all their sides were in close contact with one another. Of this species is thewall at Cora, near Velletri. The gates were very simple, and built of stones of an oblon<»square form. The gate of Hercules, at Volterra, is an arcii consisting of nineteen stones ; a JiOE3. nn
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