104, 98. The substance composing beds Nos. 1 and 5, which I have denominated Porcelain clay, has a fine, granular texture, and the appearance of some varieties of chalk. It adheres slightly to the tongue, yields readily to the nail, is meagre, and soils the fingers slightly. There are many specks of coaly matter disseminated through it, and some minute scales of mica, and perhaps of quartz. When moistened with water, it becomes more friable, and is not plastic. It does not effervesce with acids.
Bed No. 9 is the same mineral that forms beds 1 and 5; but it has a grayer colour from the greater quantity of coaly particles, and its structure is slightly slaty.
The bituminous clay of bed No. 6, has a thick-slaty structure, a grayish-black colour, and a shining resinous streak. It is sectile, but does not yield to the nail. Pieces of lignite occur imbedded in it, and it is traversed by fibrous ramifications of carbonaceous matter.
Specimens 115, 116, 117, 118, 119, are of substances altered by contact with beds of burning coal.
[31]See Page [50] of the Narrative.
[33]List of specimens, collected by Captain Franklin, on the sea-coast, to the westward of the Mackenzie.
From Mount Fitton in the Richardson Chain.
344 Grauwacke-slate in columnar concretions, detached from the rocky strata by an Esquimaux.
348 Grauwacke-slate, resembling the preceding, from the same place. Used by the Esquimaux as a whetstone.