Palmer 1937 January Berkeley to Antioch. March 7. Yesterday afternoon about 2 left Berkeley with D. H. Johnson and E. T. Hooper and traveled via Fish Ranch Road, Lafayette, Walnut Creek & Pittsburgh to Antioch. From there handled south to the base of the hills where we searched for areas which might harbor Perognathus longimem bris. Most of the country looked very poor for them, in my opinion, being largely glassland, heavily grazed by sheep or cattle or old stubble fields now covered with a new growth of young grain 2-8 inches high. After looking over several places we found a hilltop 1 1/2 mi. S. Antioch, 250 ft., Contra Costa Co. Calif. which was bare of grass and somewhat gravelly with hard baked soil. There I set 25 gor.-size mouse traps with oatmeal or birdseed bait partly on grassy hillside and partly on the bare hilltop. Picked up a skull of Mephitis mephitis near a den which seemed to be occupied at present by a skunk. Then drove down the road to a place on the flat below the hills: 1 mi. S. Antioch, 100 ft., Contra Costa Co. Calif. Here I set 40 gor.-size mouse traps