July 13. Ben Bay. 49 100 feet Dark greenish gray shale much marked and checked into pencil like pieces. Not well exposed. This = 1679 feet beneath the Richmondian. Shortest measured section of similar strata gives 14250 feet. Fault. I cannot tell from the exposure if this fault is of great significance or not. It may mean only a small dislocation or that the following section is in sequence, or there may be a great dislocation. [Richmondian] "120 feet. Marine light gray calcareous sandstone with limestone conglomerate at the base. Dip 50° N. 50° W. 10 feet. Greenish gray shale. 1 foot. Lags of conglomerate with limestone pebbles, angular, subangular and rounded, mostly small but some are 3 inches across. 300+ feet. Interval not exposed. Partly shale. 75 feet. Greenish shale with thin bands of fine sandstone. Dip 50° N. 50° W. 100 feet. Same dull beds very poorly exposed. 225+ feet. Unexposed interval 30 feet. Greenish gray and fissile shale. Dip 57° due N. 15 feet. Greenish gray shale interbedded with five paired bands of sandstone 2 to 4 inches thick. 10 feet. Dark gray to blackish fissile shale. 200 feet. Greenish gray shale interbedded with bands of fine grained calcareous sandstone. At 75 feet above base are lags eroded with the Stauropterus and Dictyorema. These beds are