Sept 16, Sage Hen Creek, 3 mi. NW. Hobart Mills Nevada Co., Calif. - Set 30 mouse traps in the meadow above camp. Total catch, 1 Peromyscus. Caught another in the set-traps in the pines behind the camp, away from the brook. We spent all of both days taking Citellus lateralis out of the rat-traps. Our total catch for 2 days was 8 specimens. 6 trapped and 2 shot with a .22 rifle. 2 chipmunks, 1 shrew and 1 Microtus complete the roster. The boys tell me that there is a beaver dam along Sage Hen Creek, about 3/4 of a mile below (Earth) Camp. Another one exists above camp near Independence Lake. The weather has been sunny, with a little cloudiness late Sunday afternoon.. The countryside is very dry. The natives say they need rains.. Saturday night we heard a coyote howling.. There may have been several of them, but all I could be sure of was one: Apparently it was not too far away. I was surprised to find that although the common ground squirrel at Sage Hen in the golden-mantle, (C.) lateralis, at few miles W. of Truckee at an apparently higher altitude the common squirrel is C. leucurus. They are all along highway 40 in the road cuts on the quite barren According to Hall, (Mammals of Nevada) C. leucurus is found at lower altitudes than C. lateralis.