Sulphur Spring localities. About 3/4 of a mile east of Leba- ron the main E + W road crosses the L + N Railroad. At this point the road for Bradford- serville branches off, taking a southwest course. One and a quarter miles along this road is Sulphur Spring. A quar- ter of a mile beyond the spring, on the west side of the road, the creek bed exposes the contact between the Lower Silurian and the Devonian. The equivalents of the Wadi- som beds are exposed farther down the stream. Here also the Pleurotomaria bed just above the Madison beds are best ex- posed. They are here only a few inches thick and lie about 4 or 5 feet below the Devonian. Further three and a half feet below the Devonian, Beatrixa undulata is exposed. The 3 feet just beneath the Coniferous are formed by a blue clayey rock with frequent specimens of Columnaria alveolata and a few of Tetradium. The highest layer of the heavy chert below 49 the Coniferous, occurs 9 feet a- bove the base. Theoolpying rock is of a dark brown color, due to weathering, but it is full of crinoid-al fragments which have retained their white color. The entire thick- ess of the Coniferous is 12 feet, and it is immediately overlaid by the Black shale. (155) A short distance south of this locality, the private road leads east- ward to the house occupied by George Buckman, owned by Judge H. W. Reeves. North of the house runs a creek, a branch of which, a quarter of a mile east of the house exposes the contact between the Devonian and the Lower Silurian. The Pleuro- tomaria bed is reduced to a layer only 2 or 3 inches thick and occurs about 6 feet below the Coniferous. The section between this and the Devonian, however contains numerous Lower Silurian fossils, some of this occurring in contact with the base of the Conifer- ous. In the Lower Silurian above Madison occurs Columnaria