distance of five hundred miles.

[21] In our former journey, we sounded near the Rein-Deer Islands in
Slave Lake, with sixty-five fathoms line, without reaching the bottom.

[22] Section of the cliffs at Limestone Point--strata dipping to the
N.N.W.

[Illustration]

In the section the strata are represented much more inclined than they
really are.

231 Fine-grained, nearly compact, yellowish-gray dolomite, forming the
summit of the hill, but the first, or lowest stratum, in the language of
geologists.

232 Compact, splintery dolomite, with a conchoidal fracture, and
wax-yellow colour--second stratum.

233 A cherty dolomite; containing calc-spar--third stratum.

234 Bluish-gray dolomite, traversed by calc-spar--is nearly compact, and
has an uneven, splintery fracture--forms the uppermost portion of the
fourth stratum.

235 Talcose? limestone, having a curved slaty structure, and containing
cherty portions--from the lower part of the fourth stratum.

236, 237 Earthy greenstone? forms the fifth stratum.

238 Brownish-red dolomite, with an uneven fracture; scarcely splintery.
It has a compact structure, and is intersected by veins of
calc-spar--from the sixth stratum.

239 Light yellowish gray dolomite, passing into chert--seventh stratum.

240, 241 Thin slaty beds of brownish-red dolomite, like 238--eighth
stratum.

242 Bluish-white porcelain chert, sometimes mixed with red
dolomite--243--ninth stratum.

[23] _List of boulders gathered on the beach at Fort Franklin._

261 Coarse crystalline granite; felspar flesh-red in large crystals;
quartz gray; mica black.

262 Granite; felspar paler, and less distinctly crystallized; quartz in
small quantity, gray; mica blackish, and rather abundant.

263 Granite; felspar partly reddish, partly yellowish-white, quartz in
small grains; mica equalling the quartz in quantity, black.

264 Granite, fine-grained: quartz and felspar, white, the former nearly
transparent, black mica in small specks, garnets.

265, 268 Granite; quartz in regular crystals; mica blackish, in small
quantity.

266 Granite? red felspar in large crystals; quartz gray; mica replaced
by chlorite?

267 Granite; felspar gray; chlorite? in small quantity.

269 Granite, small grained, passing into gneiss; reddish-brown felspar
and gray quartz, intimately mixed, and having in the aggregate, a
vitreous lustre; mica in layers.

270 Granite coarser grained than the preceding, containing more qu