artz;
the mica disseminated.

271, 273 Granite with little mica, some portions of the felspar tinged
green.

272, 274, 275, 277, 278, 279, 280, Granite grayish and small grained
mica black.

276 Granite; brick-red felspar; quartz; and augite?--no mica.

The mica is mostly black in all the granite boulders that occur here,
the felspar most frequently reddish.

281 Porphyritic granite? felspar imperfectly crystallized, containing
large, imbedded crystals; quartz; and chlorite?

282 Granite? composed of felspar, of quartz, with, perhaps, a few minute
grains of chlorite?

283 Granite? contains little quartz, and a few scales of mica, with some
chlorite?

284 Sienite; felspar somewhat granular, a little quartz and chlorite?

285 Porphyritic sienite? having a basis of slightly granular felspar,
with light-coloured crystals of felspar, some quartz and disseminated
grains of chlorite?

286 Reddish-brown hornstone porphyry.

287 Crystalline greenstone.

288 Fine-grained greenstone.

289 Porphyritic greenstone.

290 Pitchstone porphyry.

291 Greenstone slate with pyrites.

292 Amygdaloidal claystone porphyry.

293 Compact grayish-blue dolomite.

294 Splintery dolomite.

295 Cellular dolomite.

296 Swinestone.

297 Limestone with corallines.

298 Chert.

299 White quartz.

300 Quartz-rock.

301 Coarse sandstone.

302 Fine-grained white sandstone.

303 Fine-grained red sandstone.

304 Fine-grained striped sandstone.

305 Fine-grained spotted sandstone.

306 Slaty sandstone verging towards slate-clay.

307 Dark-red claystone.

308 Light-coloured claystone.

[24] _List of Specimens from Diluvial Gravel, Fort Franklin._

1 Amphibolic granite, rather coarse crystalline, felspar flesh-red.

2 Ditto, approaching to gneiss.

3 Gneiss approaching to mica-slate, felspar white, and in small
quantity.

4 Greenstone with much felspar and minute disseminated pyrites.

5 Quartz rock? having brownish and imperfect crystals, and a reddish
disintegrated mineral disseminated.

6 Brownish-red and fine granular quartz-rock, with a somewhat splintery
fracture. It has the aspect of compact felspar.

7 Quartz rock, reddish crystalline texture, and vitreous lustre, but
with small rounded grains imbedded in it, bringing it near to sandstone.

8 Coarse sandstone; rounded grains of quartz united by a clayey basis.

9 Fine-grained purplish sandstone, with grayish spots. This sandstone
occurs _in sit