Mayhew 1959 Journal 7. Jan. 25 Colorado Desert, Riverside Co., Calif. The first Uma insomata we saw was at 1330. At this time, the air temp. was 24°C., soil surface temp. was 30.5°C. We saw only one other one (both immature) before we left the area at 1400. We returned to UCR, arriving there at 1517, after travelling total of 482 miles. Jan. 28 Mojave Desert, San Bernardino Co., Calif. This morning at 0730, Frank Aubrey, Mark Kohn, Fritz Zaunst & I left UCR. We drove to the Phelan area to look for prospective Sceloporus magister sites. An area just off highway 138, 2 mi. S.W. of Phelan looked good, but is on some rather steep ground. Beekly Road, just west of this spot, however, looked even better. There is also an excellent stand of Larrea divaricata north of the Joshua tree area on the same road. After surveying this area sufficiently, we drove north until we reached the Palmdale Road. We turned right on it and drove to the new freeway near Victorville. We drove on it to Barstow, then on highway 66 to the Kelbaker Road, 5 mi. E. of Amboy. We drove north off this road to the granite hts., about 20 miles S.