There is no doubt, however, that in Greece, with its stores of marble and stone for building, brick never became general, though it was probably more used in sun-dried form in earlier buildings before the Greeks had begun to realise the possibilities of stone buildings. Pausanias[306] speaks of temples of Demeter at Lepreon in Arcadia and Stiris in Phokis, of a shrine of Asklepios at Panopeus in Phokis, and of the Stoa of Kotys at Epidauros (restored by Antoninus Pius) as being of unburnt brick (πηλός). Of the same material was the cella of a temple at Patrae[307]; but the walls of various cities, such as Mantinea, were of burnt brick.[308] Nor was the use of sun-dried clay confined to building material. It seems also to have been employed for modelling decorations of public buildings. Thus Pausanias mentions “images of clay,” representing Dionysos feasting in the house of Amphiktyon, adorning a chamber in the temenos of that god in the Kerameikos,[309] and it seems highly probable that these are to be identified with the _cruda opera_ of one Chalcosthenes or Caicosthenes mentioned by Pliny,[310] where the word _cruda_ can only be used in a technical sense (Greek ὠμά). He also mentions at Tritaea in Achaia[311] statues of the Θεοὶ μέγιστοι in clay, and at Megara an image of Zeus by Theokosmos,[312] of which the face was gold and ivory, the rest clay and gypsum. Our knowledge of the use of brick (both burnt and unburnt) and terracotta in Greek architecture has been largely increased, not to say revolutionised, by recent discoveries in all parts of the Greek world, and going back to a very remote period. Recent excavations have yielded walls of unburnt brick at Eleusis, Mycenae, Olympia, Tegea, and Tiryns.[313] The Heraion at Olympia, which dates from the tenth century B.C., is a peripteral temple with stone stylobate, pillars and _antae_ of wood, and cella-wall of unburnt brick. In this respect it resembles the temple of Zeus and Herakles at Patrae (see above). It also possesses the oldest known example of a terracotta roof (Fig. 9.). A recently discovered temple at Thermon in Acarnania is constructed of wood and terracotta, with painted terracotta slabs in wooden frames for metopes; the style of the paintings appears to be Corinthian, and they form a valuable contribution to the history of early Greek painting.[314] [Illustration: From _Durm’s Handbuch_. FIG. 9. DIAGRAM OF ROOF-TILING, HERAION, OLYMPIA. ]