O.Memmler 1943 60 Journal June 2, Judain Creek, 1500ft. 13 mi. S Slander, ShO Co., Calif. 17 Dipodonyx, and 1 ♂ Perognathus inornatus. The weather was fairly warm during the night. After taking in our traps and breaking camp we drove on to Summider. We reached our present camp about noon. We ate and then put up the specimens we had caught the night before. June 3, Santiago Springs, 2700ft., 8 mi. E + 1/2 mi. S Summer, ShO Co, Calp We are camped under cottonwood trees a little north of the spring on land under control of a Mr. Wimmer. We are in a canyon bounded by dry grass covered hills. There is a heavey growth of grass here this year due to abundant rain fall during the winter. I set out 48 live traps last night and 50 snap traps. I cought one immature Perognathus californicus in the live traps. On the Snap traps I caught 4 ♂ Peromyscus manicu- - ulatus (1 adult 3 immatures), 1 ♂ Reithrodontomyx and 3 ♂ immature Perognathus californicus. The hillside I set on had a scattered growth of junipers, many plants of Stanleya spinata, and a shrub and herb Compositae, also Buckwheat and grasses. June 4, I left my traps where they were the night before. This time I caught 1 immature ♂ Perognathus