150 8/31/58 29 [see p.76 of Nb 1] Brook Ranch 8/31/58/1.- bed 1 of Sect 10 about 1/2 Ey above section was examined above Keyst. Blanche's Bascins. Uddentia Cocality- Bed 1g Sect 19 is significantly truncated to the east, See Sec 31a. this interval is formed by beds 1-3 or the muddy stuff just below these beds, and = Sect. 30, bed 1 + below. Sect. 32, bed 3-6 = Sect 94, bed 12-14 bed 1 of Sect 10 is double bs unit separated by a very fine zone. Both 1s are generally massive, but the higher one usually seces the lower one. Sect. 10 continued- 15.) " badly worn - Total - (27' 16) Shale-silty, lightgray- 12' grades upwards into bed 17 17) fs., light gray, silty + clay - 3' 18) Shale, gray, with limonite streaks,- 14' 19) fs., lightgray to brown weathering, silty, with interbedded shales, - 8'0 20.) Sandstone, green to purple weathred. very grained, chucks found - 1/2-3' beds, with interbedded shales inlets. - 35' 21.) Covered ?' 22) fs., light brown silty shale, 6" to 1' beds, with some thin brown shales, difficult to give of feet,-22' 23) Covered, 12' 24) Sandstone, Orange-brown weathering, fossiliferous - petco, crabs, algae plates, Coll. 8/31/58/2 (2 bags) 3' 25. Covered, 32', mostly green-grayish+ crowded and 5s. 26) fs. brown to orange-brown weathering, 6"-1'-beds, very silty & clayey.-8'0