It was stated in my report of last year that when we were at Ashe’s Inlet, near North Bluff, the Eskimo gave us specimens of mica and graphite from the north shore of the Strait. During the winter and spring they brought to Mr. Ashe, the gentleman in charge of the observatory station at this place, numerous pieces of these minerals. From what they told Mr. Ashe, he concluded that both kinds were found at different localities all the way from Kimnirook, (see Report for 1884), westward to the place which the natives call Akuliak, at or near which Captain Spicer’s trading station is situated. The mica appeared to be quite common. The specimens carried to Mr. Ashe, had apparently all been gathered on the surface; and, as the natives stated that it had been taken away in commercial quantities by the vessels visiting Capt. Spicer’s station, the inference is that it must be abundant somewhere not far off. The largest specimens which I saw were about a foot in diameter. All were of a light-brown colour, and transparent when in moderately thin plates. Some pieces which I tested stood the fire well. From the accounts of the Eskimo last year, we inferred that they had found red hematite, inland from Kimnirook, but Mr. Ashe did not receive any specimens of it. In addition to pieces of quartz and iron pyrites they brought him a crystal of black sphene, an inch in diameter, from the north side of the straits opposite the station. The finding of a loose piece of crystalline limestone, like a common variety in the Laurentian rocks further south, was mentioned last year. The occurrence of sphene and graphite constitute, perhaps, additional evidence of the existence of such limestone _in situ_ on the north side of Hudson’s Strait. While exploring Big (or Turenne) Island, Mr. Ashe had found in its southwestern part a great mass, _in situ_, of a very coarse, greenish-grey hornblende rock, composed of large, radiating crystals, similar to a loose mass which I had noted the previous year not far from the station. This is an additional fact indicating an eastward movement of the ancient glaciers. [Sidenote: Stratification of gneiss.] On the main north shore of the straits, just west of the channel between it and Big Island, the stratification of the gneiss is very conspicuous. The strike is parallel to the above, and the dip is northward for a considerable distance. While drifting up and down with the ice near to the coast in these parts, the peculiarities of the gneiss, and of veins cutting it, could be observed, but there is no chart of the shore or other means of identifying the localities. [Sidenote: Limestone fragments on ice-pans.] [Sidenote: Limestone north of Hudson’s Strait.] [Sidenote: Limestone of Melville Peninsula.]