Hooper, 1936. 1/2 mi. NW Filanigan, 4200 ft., Washoe Co., Nev. July 3, Moved camp to the above locality. Left old camp on Truckee R. at 8:15 A.M., drove to Reno where went to P.O., and restocked with groceries; left Reno at 10:45, drove north along Pyramid Lake, following the S.P. railroad route (to Susanville) to this locality. Set out 10 mouse traps, 10 paces apart, in Artemisia on course sand. July 4, Caught in traps: 4 Perognathus longimembris, 1 Microdipodops, 1 Dipodomys merriami, and 1 Dipodomys microps. Set out 15 mouse traps and 2 rat traps along rocky outcroppings and adjoining rocky soil. July 5, Took in traps: 2 Neotoma lepida, 2 Perognathus longimembris, 3 Brachymys saintitus. All were put up into study skins. July 7, Moved camp yesterday to Smoke Creek, 3900 ft., 9 mi. east of Calif. state line, Washoe Co., Nev. This camp is situated, more specifically, about 200 ft. from Smoke Cr. We are occupying an old deserted ranch house.