Hooper, 1935 Berkeley, Alameda Co., Calif. Mar. 7, Saturday PM at about 2:30 left Berkeley in M.V.Z. truck #112 with Dale Arroy and Chandler Nottle for overnight trip to set marshes on S.F. Bay side in Marin Co. Arrived at our first destination - marshes at the S.P. Railroad Station Manzanita at about 4:30 PM. Set traps here then progressed northward to large marshes continuous to but east of Corte Madera and Sausalito. The marshes lie about the mouth of Corte Madera Creek. After setting traps at 2 places here, went 3 mi. north to San Rafael for dinner & picture show. Then back to marshes to stop. Picked up traps Sunday morning & returned by same route (Golden Gate Bridge & Oakland-S.F. Ferry - and via Bay Bridge goning over -) to Berkeley, where arrived at about 10 AM. It had been raining when we arrived at the G.G. Bridge; even we began setting traps it began again and kept up a slow drizzle interposed with hard showers until we left Marin &. This rain undoubtedly affected our trapping results - if it did not affect the activity of small rodents (and I believe it did) it did set off many of our traps.