Thacker 1960 Journal P.28. July 19 (sat) High Rock Ranch, R28N, T17E, sec 25, Lassen Co., Calif. Peromyscus maniculatus in addition to the Dipos I put up. After breakfast we broke camp and returned to the High Rock Ranch. Mr. Blooker who works this ranch gave us permission to camp in a shed on the ranch, and to trap gophers. We spent the next 2 hrs putting out gopher traps in some fields S of the Ranch buildings, one a dry field and a second I hay that was being cut. An early alfalfa field seemed to have no gophers. After this about 11/4 AM we started skinning, Continuing until late afternoon. About 7 PM we drove E across the state line again & set swaps traps. Returned both tonights and last long nights trapping have been in covers of loose soil (tonight more sandy - near some sand dunes) covered & sage and other desert brushes. Returned to the ranch for a late supper and tea & bed about 10 PM. July 20 High Rock Ranch, R28N, T17E sec 25 Lassen Co., Calif. Up early, about 5:30 AM and went to check traps. In addition to those specimens I put up I had one young Dipodomys microps ?, 9 young D. ordii ??, 4 ?? and 11 young D. merriami' ??, 6 ?? . Returned to camp, checked gopher traps without success, but Dr. Berson got 4 Thomomys bottae census (also I last evening). Dr. Berson also had one Microdepudops and