J.R. Alcorn 1938. Jan. 25 Neotoma cinerea 1 mi. E Weeks, Carson River, Lyon Co., Nevada a small nest 1 1/2 feet in diameter was noted 20 feet above the main nest. By probing into this nest (main nest) a rat ran up the tree into the small nest. Many droppings were noted as I ascended the tree. Droppings were in the main nest, the small nest and in the crevices of the tree. Apparently rats had occupied this tree for a long time from the amount of droppings. I ran the rat all over the tree and never caught it because it was too clever to get where I could shake it out of the tree and the tree was too large to corner it. In this same area a small clump of Buck (bull) Brush about 20 ft. wide x 40 ft. long was growing. In this clump I noted a rats nest on the ground and built up around a (Sarcilbatus) brush. Much of the bark from this greese wood brush had been eaten off.