Basal sandstone of Cataracts Heavy bedded white somewhat coarse grained, fine bedded sandstone. Rests on the fairly regular line upon Queenstown but there are some irregular Calanities. See note work of lost place. About 20 feet thick, cut in heavy beds except the upper 5 feet that are thin bedded with some shale partings. Can be seen to best ad- vantage along trolley line east of Whirlpool Rapids Station. Whereal by the trolley line above the basal sandstone come fine Cataracts shale for about 10 feet when a series of thin bedded material appears of considerable thickness that I take to be the Medina. The exposures now are eroded along the trolley line for about two miles of to Whirlpool Rapids station or that nothing of these lower beds can be seen, because the overlying member is so thick of hard bed they cannot be anything else than the Medina. There- fore we have a very irregular contact line, the difference being at least one of 11 feet cutting out the upper sand shales and the series of limestones besides of the lower shales; 24 feet thick since 3 feet