Note 215 — Chapter I · INTRODUCTORY.

[The domical construction of the vaults of the two great cisterns erected by Constantine, the Binbirderek, or thousand-and-one columns, and the Yeri Batan Seraï, both in Constantinople, suggests that there already existed in the East a method of vaulting entirely different from that which obtained in Rome, and which may have been a traditional method handed down even from Assyrian times.—Ed.]