Eumeces skiltonianus Sept 8 (cont.) Mrs. Vert. Zool, Univ. Caly., Berkeley, Alameda, Caly. they could be said to be as common as they were in June. Also, the fact that 4 were seen on the surface would seem to support our earlier hunch that they are [illegible] more active during the summer than would seem to be the case judging by the number caught. During the summer months there is much more cover, due to became formed by matted grass and cracks in the ground. In the early spring months the cover is much more limited and the surface rocks make up the greatest part of it. This may explain the more frequent occurrence of skinks under rocks in the early spring, and their apparent greater abundance then. The only other factors that have been observed, that might [illegible] explain different abundances at different times are the tendency for females to stay with the eggs, that may be laid in deeper places, and the appearance of young in August. Sept 6, Alice Kerr and I went to the same ridge; I found 3 skinks. We heard many animals rustling in the grass that we could not see and felt certain because of the continuous character of the rustle that some were skinks. We spent 2 hours hunting (mostly digging rocks out of the hillside). This would not substantiate (nor disprove), the assumption made from the experience