San Yata, Friday March 21 1919 Bit up at 6:30 and after breakfast packed my four large boxes. They will go by Express from San Yata. Dark morning and cool. Bit started at 9:0 A.M. in Brady some 38 miles, to the west to see one of this family. The distance will be then drove to a place 7 miles S. 70° W. of San Yata and collected at the very top of the Marble Falls, in fact in the first clays to the Smithrell altitude no hard shale are yet present. The limestones here are earthy and blue in color with the slightest shale partings. The horizon is cut over 8 feet thick. Paradoxus is common and I one had not more 1 foot thick Aulacosphryx the first shale ever collected of this curious hatchiform. Coming out of San Yata about 2 miles ore saw beds a little higher than bedded flake-black material intertwined with flood shale. We did not stop to examine them. We there drove along the south side of the San Yata river about 9 miles north of Pickland Springs, near here in a few feet area we saw the strata to great advantage, that is, from the limestones on up. The shales could not be seen hue to or good advantages but at the former locality their exposing strata and undisturbed was one nice side for the Ellenburger below to the limestones above. From the Ellenburger to the Sandy grime