'The Expedition for the survey of the rivers Euphrates and Tigris, carried on by order of the British government, in the years 1835, 1836, and 1837; preceded by geographical and historical notices of the regions situated between the rivers Nile and Indus. In four volumes. With fourteen maps and charts, and embellished with ninety-seven plates, besides numerous wood-cuts. Volume the first.' [‎321] (390/905)

CHAP. XIV.] KOJAH-ILI AND Boli. 321
entirely of two remarkable peninsulas projecting in parallel
directions; the more southern of which runs into the
Sea of Marmora, and the northern between the latter
and the Euxine. This tract contains the towns of
Kadi-Keui and Iscondar, in addition to Ismkmid, the
seat of government; and it represents the central part
of Bithynia.
Boli has the Black Sea on the north, the Eyalet of Kasta- Boundaries of
muni on the east, Kojah-ili and the lower Sakariyah on the B61, '
west; and on the south, portions of the districts of Sultan
Ohi and Angora. It contains the towns of Filiyas, Hisar-
Aiilu, and ErekM on the coast, Oura-shehr to the south,
and Boli in the interior; the latter is the seat of government
for this portion of territory, which, together with Kojah-lli
and the chief part of Sultan Ohi, as well as of Khoda-vendi-
kar, is comprehended within the limits of ancient Bithynia.
The chain of the Taurus has already been followed into this
province : it becomes higher, and its northern branches more
numerous, as it approaches the centre; and it is still more
elevated towards the western limits, where the country is very
mountainous.
In addition to the affluents of the Sakariyah, already its rivers,
noticed, the province is well watered by several considerable
streams ; one of the largest of these is the Filiyas, which,
from its source at the foot of Yaila Tagh, has a N.N.E.
course towards the Black Sea, receiving about midway the
S6ghanli-su, a river whose affluents rise far to the eastward,
and so close to those of the Parthenius that they have been
hitherto considered as flowing into the latter, instead of
running westward. One of these affluents, the Araj, flows
from the western side of the Kastamuni hills, and unites
with a western branch, the Namamli, or Cherkesh; and, two
hours from thence, it is augmented by the S6ghanli-su com
ing S.S.W. through Za'faran Boli: the trunk thus formed,
having forced a passage through the Orminius range at the
foot of the Sarkhun Yaila-si, it subsequently receives the
Milan-su (Hypius) ; and, having afterwards entered the
Filiyas, or Billeeus, the latter runs northward into the