R. Zweifel 1954 5 San Joaquin Experimental Range, Modera Co., Calif. March 14 We arrived at the range last night on a trip with the Field Biology class (Dr. Tuttle's). The day was devoted to Touring the Range and making transcripts of Hank Childs' 'other study areas. In what open time was available, we looked for skunks under the numerous granite rocks. Bombax (S. gilesi) was common. A smaller number of Uta stansburiana and Sceloporus occidentalis, Skinks both active around rock outcrops, were seen. Jerry Cook found a Rhinurus chilensis beneath a rock and Ruth Russell a small Pitophis under a log. I found a single Crotaphops attenuatus under a digger pine log. Hyla was calling at night, though this was not a strong chorus. Hank Childs said that the Scaphiopus were calling up to Mar. 8, when a cold spell set in which has lasted up to the day before we arrived. They did not call during our stay here. The days have been warm & sunny, the nights with frost on the grass. March 15 Worked on and near the range until shortly before noon, and then drove to Pacheco Pass on the Santa Clara Co. - Merced Co. boundary. Some chaparral, mostly open stand of Live oak over grass. Buckeye on haze. Patriaschops and Anides lugalus were common. I enclosed 13 Anides in about an hour of collecting. They were under and within oak logs and under rocks and pieces of Tim. There were a few Sceloporus occidentalis under cover, and four Thomophis elegans were found. I found two of the garter snakes active on the top of a small rise on a sunny