C.O.D. wants more collection from the upper Gaptank in type locality. Also a close study of the Wolfcamp and Uddenites zone in that region. PG. 12 6/26/57-1 Wolfcamp Hills- east end. Studied the "Dolomite" sequence at east end of the hills- The eastern most ridge is composed of limestone, the dolomite if present is limited to one or two narrow bands. The limestone is a more or less typical biohermal deposits, very large amounts of crinoidal debris and brachiopod shells, a few echinoid spines. Fusulines are few and are rather rare over in what appears to be pockets. Collection 6/26/57-1 is from a smooth weathering limestone band about 8" thick within the upper 2' off the massive face forming limestone, This is over lain by about 2' of unevenly bedded limestone and dolomite. The dip of the massive limestone and the unevenly bedded layers is S70E. Much of the slope to the SE of this narrow ridge appears to be rotated and slumped. The Uddenites beds are exposed. Collection 6/26/57/2 and 3 {note: illustration: bed 1: bed 2: 15' bed 3: 7' bed 4: 4'; Collection 6/26/57/2 bed 5: 9'; 6/26/57/3} PG. 13 This collection (2) is from the 2nd limestone highland from the eastern end of the Hills. The pocket from which these fusulines came is rather thin but of considerable horizontal extend. The stratigraphic interval between 1 and 2 appears to be only about 12' above collection 6/26/57-1, but the relationships are obscured by discontinuous bedding and rubble of these 2 biohermal masses. 6/26/57/3- From the highest portion of the 2nd bioherm on the east end of the Wolfcamp Hills. This collection is about 12' to 15' stratigraphically higher than (2). 6/26/57-4 west side of 2nd biohermal reef. {note: illustration followed} PG. 14 6/26/57/5 - Collection is from uppermost limestone ledge in what will be tentatively called the Uddenites Member, just west of the 2nd biohermal high. {note: illustration: 6/26/57/5 - Brown-red even surface; Brown shale.} 6/26/57/6 - This is collection from a fusuline horizon in brown-yellow weathering band at the base of the apparent upper Uddenites limestone bioherm (near the middle of the eastern sector in a wind gap.) 6/26/57/7 - Collection from Uddenites zone, 200 yards south of western end of disembarkment at east end of Wolfcamp Hills. The #2 limestone bioherm of King