Smiley 1936 Peromyscus crinitus July 5 W side Sand Pass, 1390 ft., Washoe Co., Nev. One young one, gray pelage, in rock outcrop near brow of hill. Rocks fissured and fractured with much stale sign of wood rat. Rocks calcareous (?) mottled with several lichens of different colors. Rock outcrop faces huge dry lake. Silt from lake had blown over slope below outcrop— sagebrush up to six feet in height there. July 6 2½ mi. E Flanigan, 4250 ft., Washoe Co., Nev. Two taken on SE-facing slope with reddish rock outcrops averaging 6 feet high X 10 feet long. Boulders two—three feet in diameter were few and placed singly or in groups of two to three. Schistose bits of this reddish rock were embedded in hard, gravelly sand. Dry grass sparse. Artemesia bushes 20—30 feet apart. July 7 40°28' N 6mi. E Calif. Line, 4000 ft., Washoe Co., Nev. Six caught in area with embedded reddish rocks on 30°-45° E-and N-facing slopes. Igneous rock outcrops with covering of calcareous hot-spring deposit. Dry grass hard-packed over surface of sand, between embedded rocks.