757 Culellus douglasi (2) Horse Ridge, at 5575 ft., SE Ruth, Trinity Co., Calif. May 29, 1933 Seen almost to the summit, and noted as common all along the dry ridges, especially in open gravelly or rocky areas. Horse Mt., 4700-5200 ft., Humboldt Co., Calif. June 3, 1933 No. 2735 was taken in rocks and brush near summit I used as it climbs out Horse Mt. Douglas Ground Squirrels seem to be quite common in bushy areas, rocks, all the way and open ground, to the top of the ridge. Coyote Peak, at 3000 ft., Humboldt Co., Calif. June 10, 1933 Common at edge of timber and on open ground or among rocks. After three days of steady drowsing, during which time no squirrels were seen, they came out in man with the warm sun and could be seen running or watching from erect posture. One was seen to run at least 50 yds from point where frightened by a small clump of oaks which, no doubt,