u_ near the Copper Mountains, between Dease Bay and the
Coppermine River.

10 Fine-grained yellowish-white sandstone.

11 Yellowish-gray sandstone, composed of small rounded grains of quartz
united by a powdery white basis.

12 Yellowish-gray sandstone, composed of fine grains of vitreous quartz.

13 Sandstone, having different shades of brownish-red colour, in layers.

14 Lydian stone.

[25] Mr. Sowerby, who inspected all the specimens containing organic
remains, says of this species of ammonite, "it is, as far as I can
discover, new. It contains sulphate of barytes, and is probably
referrible to some of the Oolites near the Oxford clay." Although it was
found lying on the beach, I have no doubt of its having fallen from some
of the beds of clayey sandstone, which form the walls of the rapid.

[26] 33 This limestone appears as if composed of an aggregate of small
crystals, and presents many drusy cavities.

34 Is an adjoining bed of a similar colour, of a fine crystalline
texture, but without the drusy cavities. It appears to be a dolomite.
These two beds dip to the northward.

35, 36 Calcareous breccia. The two preceding beds (33 and 34) were from
the summit of the portion of the hill which forms the cliff, but taken a
little farther to the N.W. In the cliff the beds dip, as has been
stated, to the S.W. The following beds occur in going to the
north-westward, towards the summit of the highest peak, commencing near
its base, in a valley behind the cliff.

37 A fine-grained blackish-gray dolomite, having interspersed many
nodules of chert, or grayish-white quartz, not crystallized.

38 A very compact, opaque limestone, of a smoke-gray colour, having a
flat and slightly splintery fracture. Effervesces briskly.

39 Blackish-gray rather compact limestone, having a flat and dull
fracture, and intersected by small veins of calc-spar. This is a
prevalent stone in the hill, and also occurs in quantity in other
limestone ridges in the neighbourhood.

40 An ash-gray, fine-granular dolomite.

41 A conglomerate, forming the summit of the highest peak.

[27] 57 This breccia has a white calcareous basis, which incloses
angular fragments of compact, yellowish-gray limestone, with smooth dull
surfaces.

58 Grayish-white limestone, having a fine crystalline texture, with
drusy cavities, incrusted with bitumen.

59 Limestone, apparently composed of crystalline fragments, highly
charged with bitumen, cemented by a wh