Mayhew 1958 Aug. 5 Colorado Desert, Calif. In fact, a depression beside the San Felipe Creek bridge on highway 78 still contained water. It didn't appear that these rains had caused very much erosion in the bed. We returned to Riverside (via Warners Hot Springs) at 1545. Aug. 22 Tonight at 2045 Mark Kohn, Bill Light, Ed Cowan + I headed for the Colorado Desert. We reached Scissors Crossing about 2330 and drove down the road towards Vallecito (night collecting). We returned to Scissors Crossing after driving a couple of miles, however, because we were getting low on gas. (Forgot to say we caught 2 Bufo sp. on the way down: 1 caught by irrigated field 3mi. north of Surprise Summit, San Diego Co., Calif.; the other 1mi. south of Warners substation, San Diego Co., Calif.) We tried to collect as we proceeded toward Brawley, Imperial Co., Calif. for gas. A young Dipodomys dorealis, 2 young Phyllodactylus duvaurius & a Coleonyx variegatus were caught on the Aug. 23 way (data in collection notebook). After getting gas in Brawley at 0415, we headed east toward Elamio, Imperial Co., Calif. We slept for a couple of