104 
water-worn hills between Milverkieui and the valley of the Susugerli 
or Macestus, is considered by Mr. Hamilton, to be perhaps of the age 
of this limestone, as well as the high and broken range of hills be- 
tween Ildij and Kespit. 
3. Tertiary Sandstones.—Vhis formation is very extensively deve- 
loped, and consists of micaceous sandstones, sands, marls, and shales. 
No organic remains were noticed in it by the author. It ranges 
southward from the village of Susugerlifor about two miles. At the 
eastern extremity of the Demirji chain, where it was traversed by 
Mr. Hamilton, thinly laminated micaceous sandstone rests against 
the granitic nucleus, and extends thence to the South for nine 
miles. This formation is also exhibited about 16 miles from Simaul, 
underlying irregularly and conformably the peperite, and at the 18th 
mile the junction between the peperite and the sandstone is well ex- 
hibited. The lower volcanic beds are contorted, and consist of large 
masses and boulders of primary, igneous, and scoriaceous rocks; the 
beds, however, gradually become finer in the ascending order, and 
nearly horizontal in their position. In the sandstone the author 
noticed no fragments of volcanic matter. At the 19th mile, how- 
ever, there appears to be a gradual passage or interstratification be- 
tween the upper beds of the sandstone and the lower beds of the 
peperite. The sandstone and peperite extend along the valley of 
the Selendichai, and the former constitutes the hills between the 
valleys of the Selendi and the Hermus, and is capped by the white 
limestone. The beds throughout the country are nearly horizontal, 
except where they have been disturbed by igneous rocks. 
4. Tertiary Limestone. 'This deposit Mr. Hamilton considers as 
belonging to the great lacustrine formation which occupies so large 
a portion of Asia Minor, but within the range of country described 
in this paper, it appears to be destitute of organic remains. It pre- 
sents table lands composed of beds of white, compact, or thinly la- 
minated limestone resembling chalk, and sometimes containing no- 
dules of opaque white flints, and sometimes extensive beds of tabular 
flint. Near Kespit it is chalky, as well as 8 miles further south. It 
forms the hill on which stands the castle of Bogaditza, at the south- 
eastern extremity of the plain of the same name. South of the De- 
mirji chain, and about eleven miles from Simaul, a white limestone 
overlies peperite, and a few miles further, rests upon trachyte. About 
the 19th mile, trachytic conglomerate overlies horizontal beds of white 
marl irregularly associated with beds of quartz pebbles. Between the 
valleys of the Selendi and the Hermus white limestone rests upon 
the micaceous sandstone, the volcanic products having thinned out. 
About the 35th mile, in the bottom of a ravine, Mr. Hamilton 
noticed the following section : 
Lowest part, gravel and loose beds of sand.... 30 feet. 
Alternations of marls and sands, the former pre-| 5 
dominating in tl t athide: 
Sethe mppenmary ee eee 
VARGO DIn rel PR iTS SRT a aye See AAO 5 to 6. 
Mr. Hamilton believes that the last bed passes into the white lime- 
stone. The hill above the ravine is capped by basalt in some places 100 
