Hooper, 1937 Berkeley, Alameda Co., Calif. May 25; Drove to Marin Co. yesterday with Art. Rempel of the zoology department. Our itinerary was as follows: left Berkeley at 12:45, drove to Richmond ferry, thence across the Bay to San Rafael mole; thru San Rafael north on Redwood Highway to Petaluma. Here we measured two "big game" specimens for the "Records of North American Big Game" at 4 P.M. drove back on northeast side of Petaluma marshes thru Lakeville to Napa road, thence back to the marshes immediately back of St. Vincent's School for Boys (St. Vincent railroad station) and finally back to San Rafael where we ate dinner after setting out traps on the marshes near here. Then drove back to St. Vincent to spend the night. This morning we collected our traps due and at San Rafael and drove back to Berkeley by the same route -- reached here at 7:30 A.M. There is considerable unclaimed marshland around Lakeville, but most of the land about Petaluma is under cultivation.