Mayhew 1958 Nov. 14 Journal 118. 5 mi. W. of Glamis, Imperial Co., Calif. the time we were in the area. at 0915 I took a humidity reading with the Cedex hygrometer on the sand surface. It read 49%. The humidity in a newly dug hole in the sand (20" deep) was 61%. The sand was quite damp from about 6" deep on down. The first animal seen was a juvenile Uma notata about 50 feet from the car. The first adult Uma notata was seen at 0945. Except for an adult Coleonyx variegatus found on the sand dune under an old automobile seat, no other reptiles were seen (other species). A few adults were seen and caught, but the great majority of the active animals were juveniles. However, amults were still active at 1315 when we stopped looking. At this time the weather conditions were as follows: Air temp. - 25.6°C. Surface temp. - 36.8°C. Wind - S.E., 6-9 mph. Rel. humidity - 39%. [Maximum temp. today was 26.7°C. (80°F.)] We weren't able to leave the area until 1440 because the road beside us was blocked off for photographing Buick TV commercials. When we were permitted to move, we drove to the