Hooper, 1936 Smoke Cr., 3900 ft., 7 mi. & Calif. line, Washoe Co., Nev. July 7, belonging to a Mr. Jenkins (?). Along the creek bottomlands, cottonwood, willow and other riparian indicators are found. Ad- joining the stream association (with the occasional marshy lands and small pools) is found an Artemesia - Chrysopthamus association. In this deserted house were found abundant signs of wood rats. Droppings abound on the floors, on tables, and rafters. One nest was found in an old bureau. The bottom section of the bureau was full of the following materials: cottonwood leaves , cow of horse bones, pieces of wood, a coyote skull, and other miscellaneous bones. No tunnels or cavities could be found in this mass of material. It seemed to be merely an "accumulation" alone - resulting from and probably satisfying partially the instinct to collect or accumulate "odd" articles. Per- haps the cottonwood leaves and stems would be used later on (winter?) for food. In the drawer just above this accumulation was the nest proper. It measured: 8 in. from outer rim to outer rim; 4 1/2 ins from inside rim to rim; and about 4 in. high. It was free from fecal matter and probably