? [Dawson's ?] Does the height of the Woody Mt. Plateau taken with the horizontality of the beds, agree with the supposition that the strata there seen represent those forming the high watershed plateau seen N. of the line & not visited last year.
Drift. The great abundance of limestone & Laurentian pebbles in some parts of this district & their comparative absence in other places & replacement by ìQuartzite driftî seems at first perplexing but the general law seems to be as follows.
On the summit of the Upland Plateau already referred to the drift covering never appears to be thick & consists often of a mere layer of shingle overlying the Lignite Tertiary. It is composed almost entirely of "Quartzite Drift" with only a slight admittance of Laurentian or limestone pebbles.