Hendrickson 1950 Journal Sept. 3 Black Rock Spring, 4500 ft., San Bernardino Co., Cal. guns. Later in the evening when they left, the car stopped at the point where they had emerged from the brush. The men went into the brush and I believe they picked up their guns which had been hidden. I walked about 1 mi. down the road from the spring and returned, using a headlight all the way. No corpses were seen. I only saw one eyeshine -- presumably an owl. The concrete trough below the trough held about 6" of water in one section, 1"-2" in the other. 100 Museum Speciales were set along the side of the road between camp and the "guzzler". Sept. 4 100 Museum Speciales contained 1 Dipodomyx morrisoni and 1 Perognathus fallax. Rat traps were empty. While taking up traps, preparatory to breaking camp, collected Sceloporus from trunk of pinyon tree, about 12' up. Temp. of animal = 26.4°C; ground temp at 6" = 25.7°C. In a small side canyon enroute to spring saw what I believe was a roadrunner; glimpse was too brief for certain identification. Returned to camp to