Hoffmeister 1941 Itinerary Calaveras Big Tree State Park, Calaveras County, Calif. July 17-19. Left Berkeley with Mrs. Hoffmeister and drove via Lodi and San Andreas to Angeles Camp and then to Calaveras "Big Trees," arriving about 1 p.m. (on the 17th). We camped in the park proper until the early morning of the 19th. Mammals seen in the park were Citellus beecheyi (immense young and some adults, but wary), Sciurus douglasii (abundant, with most of them appearing to be young), 2. Sciurus griseus. In conversation with a park assistant I learned that 2 brown bears visit the park nearly every night "but from the park they intend to get rid of them with guns" and that Odocoileus hemionus are common. A few mule deer have been in parts of the park at times. The park assistant said the gray squirrel had only recently (within the last 2 years) invaded the park. I was impressed with the occurrence of Beechey ground squirrels and Chickarees in the same area, with the two, when on the ground, both covering the same territory. One young C. beecheyi came within 5 feet of us while we were eating but otherwise young and especially adults were shy. On the whole, the ground squirrels were in more open situations, as along the banking of the road, along the cleared ski jump, or in openings with fallen stumps, but very often they went into the denser