White Rock Ranger Station, 4800ft, Trinity Co., Calif. May 29, 1946 3 Peromyscus maniculatus in traps. Went hunting till noon but saw little. Took a Horned Warbler (1718) which came down to my Pygmy Owl calls, and a Steller Jay (1717). Skinned in p.m. and set about 25 more traps out along a creek about a mile from camp toward Grasshopper. The creek flows over large rocks, and numerous logs and dead trees have fallen over it. There are many little waterfalls along its course. Set about 20 traps in the meadow directly in front of the Ranger Station, only about 15 yds from camp. May 30, 1946 Traps in meadow and along creek near Grasshopper yielded nothing but Peromyscus maniculatus. More trap in the first line I set at this location on May 29 was a Clethrionomys magama (1719). Dr. Miller, Russell & I drove fast grass- hopper to the end of the road. Ward and I then walked down to the East Fork of the South Fork of the Trinity River. Dr. Miller headed for a ridge top a couple of miles distant. After hunting in the vicinity of the river for about an hour with no results, I headed up hill to the road, then went to the top of the ridge on the