The direction of this ridge, I consider, pretty clearly establishes the course of the diluvial current in this region, and the erratic stones which are distributed along its base, I attribute to an origin several hundred miles North West from the Côteau. I have not myself traced the Côteau to its highest points, nor to its Northern extremity; but it has been a subject, on which I have closely questioned a number of traders, who have traversed every mile of it with their carts, and from thence to Lake Winnepeg on the North, who uniformly tell me, that there is no range of primitive rocks to be crossed in travelling the whole distance, which is one connected and continuous prairie. The top and sides of the Côteau are everywhere strewed over the surface with granitic sand and pebbles, which, together with the fact of the five boulders resting at the Pipe Stone Quarry, shew clearly that every part of the ridge has been subject to the action of these currents, which could not have run counter to it, without having disfigured or deranged its beautiful symmetry. The glazed or polished surface of the quartz rocks at the Pipe Stone Quarry, I consider a very interesting subject, and one which will excite hereafter a variety of theories, as to the manner in which it has been produced, and the causes which have led to such singular results. The quartz is of a close grain, and exceedingly hard, eliciting the most brilliant spark from steel; and in most places, where exposed to the sun and the air, has a high polish on its surface, entirely beyond any results which could have been produced by diluvial action, being perfectly glazed as if by ignition. I was not sufficiently particular in my examinations to ascertain whether any parts of the surface of these rocks under the ground, and not exposed to the action of the air, were thus affected, which would afford an important argument in forming a correct theory with regard to it; and it may also be a fact of similar importance, that this polish does not extend over the whole wall or area; but is distributed over it in parts and sections, often disappearing suddenly, and reappearing again, even where the character and exposure of the rock is the same and unbroken. In general, the parts and points most projecting and exposed, bear the highest polish, which would naturally be the case whether it was produced by ignition, or by the action of the air and sun. It would seem almost an impossibility, that the air passing these projections for a series of centuries, could have produced so high a polish on so hard a substance; and it seems equally unaccountable, that this effect could have been produced in the other way, in the total absence of all igneous matter.