Note 122 — Chapter V · THE BEGINNING OF THE STONE CASTLE

The donjon of Falaise belongs to the early part of the twelfth century, and is therefore a late example of “herring-bone” work. The “herring-bone” work in the keep at Guildford is probably still later, and that in the curtain wall at Lincoln, raised on the top of earthen banks, can hardly be attributed to a very early date.