Hooper, 1937 Drwerness, 100 ft., Marin Co., Calif. Mar. 27, Night before last (Mar. 25) set out traps at the locality Point Reyes Station, salt marsh. This locality, more exactly, is about 1/2 mi. N NW Pt. Reyes Station at the head of Tomales Bay - on the N side of this Bay. 35 traps were set in Salicornia mostly in Microtus runways not over 100 ft. from the old San Francisco and Cazadero Railroad bed. Found in those traps: 7 Microtus. Set 1/5 mouse and 1 cat trap on the hillside east of the marsh in thimbleberry, Acrostichum sword fern, Baccharis. Saw what may have been Aplodontia burrows in sword fern clumps. Caught nothing in the brush. Made 1 gophers set; set not disturbed when taken up the next morning. Also set 25 mouse traps the same evening on the west side of the Bay (Tomales) about opposite (as re. latitude) the locality on the east side. These traps were set in sedge ? (arrow grass?) and in Salicornia. Caught here 1 Microtus and 5 Peromyscus (3 juv.) - all in Salicornia.