39 
slender prisms of hornblende, having a blue-green and pale brown pleo- 
chroism, and a smaller amount of quartz; and also coarse dark green horn- 
blende rocks with little schistosity, containing red garnets. Under the 
microscope they are found to consist mainly of hornblende with blue-green, 
yellow-green, and pale brown pleochroism; but around the garnets there 
are also pale bluish-green augites and in places a halo of intimately 
mixed minerals including augite and a greyish, transparent substance not 
determined. 
Among other boulders at the Forks there are dunites and peridotites, 
showing in thin sections a beginning of serpentinization, which must have 
come from the serpentine area crossed by the river, and correspond to the 
fresher rocks described by Adams from mount Albert. The garnetiferous 
hornblende rocks mentioned are very like schists from the highest point 
of the same mountain. 
Cascapedia Valley 
In order to see something of the southern interior of Gaspe and to 
visit the only mine known to be of importance a visit was paid to the 
Federal Zinc and Lead mine, owned by Lyall and Beidelman, of Montreal. 
It is almost in the geographic centre of the peninsula, and is reached by a 
lumber road from Cascapedia station, near the south coast. Thirty-five 
miles of the road are in the valley of Cascapedia river, whence a branch 
road made by the mining company follows a tributary, Berry brook, for 
about 9 miles northeast to the mine. The road, though rough for wagons, 
affords a good section of the sedimentary rocks from the coast inland, 
which have been briefly described before by the Geological Survey 1 and 
will not be referred to here. 
Pleistocene features of interest begin near Cascapedia station, where 
the pebbles and boulders on the bed of the river are found to consist only 
of stones from the interior, such as hornblende schist, fine-grained granite, 
quartz porphyry, porphyrite, and amygdaloid; but foreign rocks, such as 
gneisses, are wanting. 
Boulder' clay was seen at several points and about half-way to the 
mine boulders of granite like that of Tabletop were found, and near the 
mouth of Berry brook these were accompanied by blocks of serpentine or 
peridotite, evidently from the Shickshocks. 
The river has a well-graded channel rising in 36 miles from sea-level 
to about 400 feet, an average of 11 feet per mile, and scows carrying several 
tons of supplies for the lumbermen operating on the headwaters are hauled 
up to this point by teams walking on the bpach or in the shallow water. 
The river valley is in some places wide, with considerable areas of 
good alluvial land covered with fine hardwood, but in other places is 
narrow and V-shaped. Re-entrant forms are often striking, and for most 
of the distance the valley is entrenched several hundred or a thousand feet 
beneath the level of an uneven tableland. A topographical map, Bona- 
venture sheet, Series No. 36, published by the Department of the Interior, 
gives the plateau called Big Berry mountain an elevation of 2,000 feet, 
and Tattle Berry mountain, 5 miles to the south, is credited with 1,500 feet, 
these figures being taken from Ells’ report, previously mentioned. 
Beyond Berry Mountain camp the lumber road continues to the.forks 
about 3 miles up, and one of the branches of the river, the Salmon branch, 
1 Geol. Surv., Can., Logan in 1844, and Ells, 1882-4, pp. 26 and 27 E. 
