Walls.
Cyclopean walls of huge irregular stones. Also good square-cut
masonry.

'Corbelling' system for arches, each layer of stones projecting
inwards over the one below. Also used for the vaults of 'Beehive'
Tombs towards end of period.

[Illustration III: TYPES OF GREEK POTTERY, ETC.]


II. PREHISTORIC GREEK


Geometric or Dipylon Period.

Pottery.
Iron Age. circ. 1000 B.C.--Absolute break in continuity from what
preceded. No naturalism. Prevalence of geometric patterns (III, Figs. 18
and 19). Not much variety. Meanders, lozenges, and zigzags. Circles
joined by tangents replace Mycenaean spirals. Ornament crowded. Rows
or single specimens of long-legged water birds. Human figures rare,
rude angular silhouettes.

Local characteristics discernible (e.g. between ware of Thessaly,
Attica, Boeotia, Delphi, Argolid, Laconia, Thera, and Crete), but
strong family resemblance. (Lower specimen III, Fig. 19 characteristic of
Boeotia.) Dark paint on natural clay (sometimes lightened by a white
slip, e. g. Laconia) differs distinctly from Mycenaean. Shapes fewer