W. Reiner 1949 Journal 5-6 july Bloomingtont o Lake Mead Nat'l Recreational Area, Clark Co., Nevada Las Vegas. Camped that evening at bathing beach just above dam. 7july Lake Mead Nat'l Recreation Area, Clark Co., Nevada Day off. All I party went swimming, got badly sunburned. Weather extremely hot. All most uncomfortable. 8'july Lake Mead to 36.3 S Needles, San Bernardino Co., Calif. Just outside Kingman looked for Urosaurus ornatus. Found, but did not capture one Sauronodus under first rock flake pulled off, Further search revealed nothing. Farther along road to Needles collect small series of Urosaurus gracilis in creosote brushes. S of Needles in evening took 2 Chionactis occipitalis but nothing more. Camped at locality. 9 july San Bernardino Co, to Yuma, Yuma Co, Arizona Continuing S on U.S. Hwy 95 picked up several Diposaurus along road just N Riverside Co. line. At Blythe turned E on U.S. Hwy 60470. Just across River on Arizona side spent most I afternoon writing notes and preparing specimens. River wide here and though went in for both noted lot of scummy blobs floating on surface. Do such water safe?