ISLE OF

DOGS  , a district of London, England, on the north bank of the Thames, which surrounds it on three sides.- It falls within the metropolitan borough of Poplar . It is occupied by docks, riverside works and poor houses . The origin of the name is not known . The suggestion that it is corrupted from the Isle of Docks falls to the ground on the question of chronology; another, that there were royal kennels here, is improbable, though they were situated at Deptford in the 17th century . (See POPLAR:) DOG-TOOTH (the French dent-de-scie), in architecture, an ornament found in the mouldings of medieval work of the commencement of the 12th century, which is thought to have been introduced by the Crusaders from the East . The earliest example is found in the hall at Rabbath-Ammon in Moab (c . A.D . 614) built by the Sassanians, where it decorates the arch moulding of the blind arcades and the string courses . In the apse of the church at Murano, near Venice, it is similarly employed . In the 12th and 13th centuries it was further elaborated with carving, losing therefore its primitive form, but constituting a but afterwards went over to Caesar, and was present at the battle His'. of Dogma; Eng. trans. i. p._21, footnote . I of Pharsalus . To escape the urgent demands of his creditors, he viii .

13 - II most beautiful decorative feature . In

Elgin cathedral the dog-tooth ornament in the archivolt becomes a four-lobed leaf, and in Stone church, Kent, a much more enriched type of flower . The term has been supposed to originate in a resemblance to the dog-tooth violet, but the original idea of a projecting tooth is a sufficient explanation .