A. Upper 4 feet of the 20 ft of limestone consist of dense blue limestone, in 4 layers. The top layer is very fossiliferous and contains Arthoceras Murchison ia, Oterinea, Modiolopsis? Cellus occidentalis, + a smaller Modiopsis? I collected quite a number of fossils here. (For fossils see 2d page preceding this) The lower 16 feet also consist of limestone but it is evidently a thin- banded limestone, though the thin bands hang together so as to form quite a firm stone. These thin banded limestone weathers more readily than the limestone courses which do not show any bedding. The upper limestone beds slum in the weathered surface, gaesterford and Arthoceras very much in the same style as does the gaesterford layer along the Ohio river country near Madison Indiana and thence south westward. They correspond to the massive beds at Rock House, apparently, by a virtue these beds. B. 12 1/2 feet of clayey rock, weather- ing into Clay shale. The basal part formed hard, rather white as look- ing, then courses. C. 7 inches of rather solid lime- stone. D. 3 feet of clayey Mud, like rock massive looking, weathering into a soft clayey rock. E. At the base of the Black Shale, the lower 3 feet weather more readily. The total measured section up to the nodular layer gives in 30 feet for the thickness of the Black Shale. Perhaps the nodular layer has fallen down the hill side a little bit of this I have not evidence. F. The lower part of the section was secured from the end nearest Willis's Creek bluffs. The 14 feet of thin bedded clay limestone there underlie 3 1/2 feet of heavy limestones. These limestones I assume to be the lower layers of the 20 feet of limestone slum in the Furler's Landing section. According to this interpretation, we have here at least 21 1/2 feet of rock above the rock shun at Rock House. In that case the thin banded limestone which has the massive appearance and which evidently belong above the thin bedded May- or contains clust. Unfortunately, I do not remember whether the limestone bed with clust actually was at the base of the 20 ft. of lime- stone at Furler's Landing. I am not certain.