ibrous structure and a very beautiful
fracture, presenting a congeries of circles. (This coal was recognised
by Professor Buckland to be a tertiary pitch-coal, and is precisely
similar to specimens brought from the upper branches of the
Saskatchewan, by Mr. Drummond: see page 284.) The specimen was picked up
from the gravelly beach at the mouth of the Babbage River.

355 Greenish-gray limestone, with a somewhat earthy granular aspect;
containing shells which Mr. Sowerby considers to be very like the
_cyclas medius_ of the Sussex weald-clay. Picked up at the same place
with the preceding specimen.

Captain Franklin remarks, that "the Babbage flows between the mountains
of the Richardson Chain, and that there were no solid strata nor any
large boulders near its mouth. The gravel consisted of pebbles of red
and white sandstone, slaty limestone, greenstone, and porphyry, much
worn by attrition."

_From Mount Conybeare, in the Buckland Chain._

356 Greenish-gray grauwacke slate, (resembling No. 348,) with specks of
effervescent carbonate of lime. The surfaces of the slates exhibit
interspersed scales of mica. The specimens were broken from the summit
of Mount Conybeare, at the western extreme of the Buckland Chain:
latitude 69 degrees 27 minutes, longitude 139 degrees 53 minutes west.

358 Fine-grained grauwacke-slate in columnar concretions, from the same
place with specimen 356.

357 Grauwacke-slate, in thick slaty columnar concretions, besprinkled
with scales of mica. Taken from a bed about the middle of Mount
Conybeare. The resemblance of this stone to that of Mount Fitton (No.
344) is very remarkable.

360 Similar rock to 358, with an adhering portion of a vein of
crystallized quartz, and on one side a bit of bluish-gray slate. From
the middle of Mount Conybeare.

359 Columnar concretion of a slaty rock, like 356, but more quartzose,
breaking into rhomboidal fragments. From the middle of Mount Conybeare.

361, 362 Grauwacke-slate, with a thin adhering vein of carbonate of lime
and numerous particles of disseminated mica. From the middle of Mount
Conybeare.

363 Bluish-gray grauwacke-slate, resembling Nos. 348 and 344. From the
Upper Terrace, at the base of Mount Conybeare.

364 Dark-bluish gray and very fine-grained grauwacke-slate, with a
glimmering lustre, traversed by a vein of quartz. From the same place.

365 A thick-slaty angular concretion of a very quartzose
grauwacke-slate, (similar to Nos. 348 a