Lee Arnold House Canyon, 5800ft Pahrum Pk., Washoe Co., Nevada 1937 Itinerary May 28, to go through all the other mines on the side hill and see what I could find. In the highest mine from the floor of the valley (approx. 1,000 ft.) I found a Corynorhinus (Lump-nosed Bat) hanging from the roof of the chamber about 75 feet from the entrance. I collected this. It was interesting to note the way the long ears were folded back over the sides of the head of the bat in a circular manner. In all I went to the ends of eight shafts (tunnels) which varied from twenty to several hundred feet in length. In the first cave, the one the miners were working in, I found nothing but the remains of a Neotoma cinerea nest. The miners showed me a dead adult & rat which I took back to camp later. They said that they had not killed the rat and had no idea of how it was killed. In the 2nd mine I found nothing. In the 3rd I found fresh cuttings and nests of wood rats. At the very end of the mine I found three open nests on the floor of the tunnel. These nests were built much like a bird's nest (i.e. Calif. Jay) and were not covered over in any way. At the very end of the shaft was a narrow split in the rock which evidently was used as a refuge place for the rat when molested. There was fresh droppings and urine on the floor of the mine near this opening so I surmised