B.B. Richardson 4 17 General Account. Strawberry Canyon, Berkeley, Alameda Co., Calif Last evening set 12 large rat traps and 8 small mouse traps. The rat traps were set in the oaks or in the dense brush at or bordering the oak trees. Each trap was placed at an individual nest and all with the exception of 1 showed signs of working in the form of freshly cut twigs at the top of the nest. (See individual description.) One Pleotoma caught. The small mouse traps were set in the more open grassy area which was bordered by brushy chaparral. Four Reithrodontomy, three Peromyscus maniculatus, and one Peromyscus truei. Individual description - 1. Set at base of live oak containing a rat nest 2 ft. in diameter 10 ft. off the ground. There was a pronounced canopy of oaks and scanty underbrush and grass and mud,