to the N.-W. Resting directly upon the Marble nefarial, Falls lie, are about 10 feet of dark blue slates, and then about 4 feet of greenish grey thin bedded fine grained sand- stone with interbedded slates. These sandstones have an abundance of casts of wood and among them may be seen some casts of Colamites. It is seemingly in the Sturman, therefore there is here no Smithonian slates at all. The disconformity is therefore really an unconformity. The Sturman has the same dip and strike as the Marble Falls, and both were deformed at the same time. There is here not the slightest evidence for a time of rogering between the Bend and the Sturman. On the west side to about 11 miles out of San Jaba to Rough Creek and collected in the stream where the road crosses it. The stream runs over a very thinly bedded and hard limestone, the top of which is hummocky to the extent of nearly 18 inches. In a bog there are seen no fossils, but as one area of flint at the top of this lie, attracted my attention I broke it and to my surprise found Texularia and partly other Foraminifera. I thought it must therefore be the top of the Ellenburger, but later on I saw Productus lily costatus in it. McCoy also at first thought it was the Ellenburger.