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212 ARCHAEOLOGICAL INSTITUTE.

locality is isolated from the great mass further westward, and forms
the rugged hills between Kyalar and Ahmajah. The hills are ap-
parently composed of large dikes of trachyte, dipping northward and
presenting cliffs towards the sea. Southwest of Demearjee-kioy about
two kilometres, the trachyte, with its usual strike and dip, cuts directly
across the area of basaltic rocks as if it had been forced up through
them in reaching the surface. Moreover, upon the south side of the
trachyte it appears to overlie the basaltic rocks.

Along the coast directly south of the area described, irregular dikes
of basaltic rocks may be seen penetrating the tertiary strata. The
same phenomena may be observed in the neighborhood of Aracle6,
south of the site of Gargara. Small exposures occur also in the
vicinity of Tacta-kioy (Astyra) and Zytinle6, near Edremit. At the
former locality the hot springs appear to owe their origin to the
presence of the basaltic rocks from which they rise.

Upon the left bank of the Bahchahlee1 River, about fifteen kilo-
metres southeast of Eanedeh, at the head of a plain rises the ma-
jestic hill called Sapandjea-tepeh. It is formed of basaltic rocks
containing numerous small grains of olivine. The columnar structure
in the rock being well developed and nearly vertical, the slopes are
very steep, and fos the most part perpendicular cliffs. Upon the east-
ern side, however, where the columns are much contorted, the approach
to the summit is not difficult. This prominent hill, rising close to the
river and standing at the head of a fertile plain, must have furnished
an excellent site for an ancient city; and the traveller is disappointed at
not finding fragments of pottery or ruins upon the summit.

At the southern base of Curshunlou-tepeh, the site of ancient
Kebrene, by the right bank of the Mendereh, is a small plateau of
basalt containing many small crystals of feldspar and bright grains of
olivine. This area appears to be quite large, extending west across
the river into the hills south of Beiramitch.

The largest exposure, however, which has yet been- mapped within
the Troad is between Bunarbashi and the valley of the Kemar (Thym-
brios) River, at the southern end of the Plain of Troy. The rock is
usually compact, containing numerous grains of olivine, but other min-
erals are not prominent. Occasionally it is very cellular and amygda-
loidal. The round and elongated amygdules are of calcite, which forms
also numerous irregular veins. In the valley of the Kemar the basalt
 
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