Palmer 1934 Dec. 30 Cont'd. There set 10 gov. size mouse traps on a sandy ridge grown over with Russian Thistle. Also set 5 mouse and 3 rat traps in an old vineyard drifted over with sand. Examined these traps 3 mi. E Ontario at 9 P.M. and found 5 Peromyscus maniculatus in the traps. Deer Canyon Wash, 4 1/2 mi. NE Upland, 1550 ft., San Bernardino Co., Calif. Dec. 31 In 54 gov. size mouse traps took mammals of the following species: 8 Dipodomys agilis, 3 Peromyscus californicus insignis, 5 Peromyscus fraternulus, 1 P. boylei rowleyi and 1 P. maniculatus. 3 mi. E Ontario, 1025 ft., San Bernardino Co., Calif. In 15 mouse and 3 rat traps took mammals of the following species: 5 Peromyscus maniculatus and 1 Dipodomys agilis Jan. 6 1935 Drove E from Ontario in A.M. to a point: 6 1/4 mi. E Ontario, 1025 ft., San Bernardino Co., Calif. There in a wash, shot 1 Shrike and saw a Golden Eagle on a telephone pole 1 Spotted Towhee and 2 Ferruginous Rough-Leg flying low over the vineyards. In P.M. returned and set out 65 gov.-size mouse traps. About 7/3 of the traps were set on a sand dune which runs nearly N and S for about 1/2 mi. The dune had some plants growing on it: Cumer,