Hendrickson 1950 Journal Aug. 23 Lower Covington Plate, 5000 ft., Riverside Co., Calif. up into sunlight area above bowl (soon before entire valley lighted by sun), temp. was 21.1°C. Manzanita became noticeably more common near the top of the ridge. At 7:40, on the ridge, caught a fleeting glimpse of a chipmunk. While trying (without success) to squeak out the chipmunk, noted a large Sceloporus magister and eventually shot it. temp. of Sceloporus —————— 27.4°C. temp. of shady creek in rocks where caught — 23.0°C. partially sunny rock face where first seen — 26.4°C. On high rocky point overlooking much of surrounding country, shot at rock squirrel and hit it hard, but failed to locate it after prolonged search. At 8:35 sawed Sceloporus magister from creak in rocks: temp. of Sceloporus —————— 27.0°C. temp. of creek in rocks —————— 23.8°C, temp. of sunny rock face ———— 28.0°C. Walked N. along ridge and eventually turned W. toward Covington Plate again. In wash leading to Plate shot at and missed a Cottontail Rabbit. & About 5 min. later saw fox rabbit but did not get a shot. Returned to camp and practiced shining. At 3:00 P.M. temp in tent was 34.0°. Worked on snake trap. Young racer seen descending pinjon tree forming center of