Palmer 1934 General Account Mar. 4 500 ft., North Side of Dwight Way, Hill, Berkeley, Alameda Co., Calif. Set 12 mouse traps. Ten in Microtus runways in puccinellia grass and chlorogallum on a north- wester facing slope. In these took one & Microtius on oat bait. Two traps with meat bait in hope of getting Sow but no result. One other trap was set in a clump of Backanus, Poison oak and nettles just below the Microtus runs. New took one & Rethrodorbonyx megalotis longicauda which had the skull crushed so was not put up. One other trap was set in the mouth of a burrow about 1" in diameter with oat bait. No result.