Writing in his report of his survey of the west shore of Reindeer lake, Mr. Dowling states:—“From Priest’s point (proceeding southward), the lake gradually narrows from a minimum width of four miles, to a narrow inlet less than a mile wide at the outlet, and the course of this part lies very nearly southwest and northeast following in a general way the strike of the rocks. A band of dark mica-schists is crossed, reaching from near Priest’s point to twenty miles southwest, and along the course followed through the islands many small dykes of a quartzose fine-grained granite were found, in which iron pyrites is freely developed. The beds of fine-grained gneiss on Camping island, ten miles south from Priest’s point, are also found with many veins of pyrites and on the hill in the centre of the island many of the beds are very much rusted and decomposed. The pyrites are found to contain a small percentage of NICKEL AND TRACES OF COBALT. At the north side of a small creek on the west shore, southwest from Camping island, the Indians report a soft soapstone or serpentinous rock from which they make pipes, but a visit to the locality did not result in finding this rock, which was then said to be obtained in small pieces from the shore and generally under the water. The rock there was, however, a light green sericite-schist, and it is possible that unfoliated or less cleavable portions of this might be soft enough for the purpose named. The stratigraphical relations of this band with the surrounding gneisses, could not in the time at the disposal of the party be made out, so that it is problematical whether this may be a small area of highly altered Huronian beds or not. The next rock occurring to the south is a dark garnetiferous gneiss, followed by reddish granitic gneiss to the outlet of the lake.” Mr. Dowling mentions that in descending Reindeer river his attention was attracted by the red colouring of a hill near the river, below the mouth of Stump river. He states:—“On a nearer view, this red colouring is found to be due to the debris of a decomposed band occupying the crest of the ridge. The rock has been very highly charged with iron oxides and pyrites. The strike of the beds is south 10° east, with dip eastward at angles varying from 60° to 80°. Several large seams of red granite cut into the hill and break up the beds somewhat. “A section of the hill shows a light, coarse gneiss near the bottom, with a dark mica-schist, followed by a bed of light, rusty coloured gneiss having a thickness of about five feet. This in some places seems to have been very rich in pyrites and is weathered out to a reddish ochre. The outcrop is just below the crest of the ridge, and from it the ochre falling down, stains the whole face of the hill. Above, on the summit, the rock is mostly a dark-red gneiss.”