Lee Arnold 1937 2 mi. W Smith Creek Cave, 6,300 Ft., Mt. Marion, White Pine Co., Nevada Itinerary June 13 hill at less than a 45° angle from the horizontal. It was very sparsely covered with vegetation. The main part of this included Artemisia with occasional jumpers and "grass bunches." I also set five steel traps (#1/2) in the rocks near where I saw the Otospermophilus. This morning I had only two Peromyscus crinitus in the line of 33 mouse traps. In the rat traps was one Neotoma lepida while in the steel traps was one Neotoma and one Spilogale phenax. The latter was a young animal. Last night I shot 4 bats; two Myotis (sp.?) and two Myotis evotis. June 18 Last night I left the mouse traps on the side hill N/E of camp in place. In them I caught: Perognathus formosos - ♀ 5 Peromyscus crinitus 3 adult ♂ 2 imm. ♀ 3 Peromyscus maniculatus 1 adult ♂; 1 ad. ♀; 1 imm. ♀ 3 Neotoma lepida 1 imm ♂; 2 imm ♀. In the rat traps set about ½ mi. W Smith Creek Cave I caught: 3 Neotoma lepida 1 imm ♂; 2 imm ♀ Although three of the steel traps were sprung and two of these had porcupine hair in them there was nothing in them this morning. Tonight I am going