Principal The quarry in which they were found is on the land of Mr. Asa Fillimore, about eight miles and a half east of where the thick Coalseams crop out on the property of the General Mining Association, at Spring Hill, and three-quarters of a mile west of the railroad bridge over Eiver Philip. The beds, associated with that in which the tracks were found, are of a reddish-brown or chocolate eoloured sandstone, from one to five feet thick, overlaid by purple, blue, and red shales. The tracks

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... ere at a depth of about twelve feet from the surface, in a thin stratum of dark shale, the dip being S. 10°, W. 42°. The details of the geological structure of the district have not yet been worked out, and whether the beds containing the footprints are above or below the productive Coal-measures, is at present uncertain. The accompanying photograph 1 is that alluded to by Dr. Dawson of the slab in Ottawa.