12. Greek fret (Birch, _Ancient Pottery_, Fig. 4, p. 305).
13. Greek fret (Glazier, _Notes on Ornament_, p. 8).
14. Japanese fret (Glazier, _loc. cit._, p. 8).
15. Anglo-Saxon fret, Lambeth Aldhelm (J. O. Westwood, “Early
British Anglo-Saxon and Irish Ornamentation,” _Arch. Journ._,
x. p. 290, 1853).
[Illustration: Plate IV]