Lee Arnold 1937 near Smith Creek Cave, Mt Moriah, White Pine Co Nevada Itinerary June 4 camp is situated on the south side of Smith Creek Canyon almost directly opposite the Smith Creek Cave. This cave is the one in which Dr Harrington of the Southwestern Museum is hunting for Pleistocene fossils. The purpose of our stay in this area is to get a line on the mammals of this area at present, the present floral associations and life zones, and a general idea of the relative abundance of life in this region. According to Johnson our objective is to trap systematically note all the plants, soil changes and various physical aspects of the area trapped. Because of this I am making an effort to be specific even at the risk of repetition. When we have finished with this area I am going to attempt to map the traplines and show exactly where the animals were caught. In all I caught 37 mammals last night. 15 Dipodomys ordii (mostly females) 9 Peromyscus maniculatus (4♂ 5♀) 10 Neotoma lepida (6♂ 4♀) 3 Perognathus longimembris (3♀) An account of the association of each of these is found in the species accounts. The traps were placed at an average of 40 feet apart so that for most of them the distance from camp can be