"Hooper Citellus beecheyi 2 1/2 mi. S Antioch, 250 ft., Contra Costa Co., Calif. Mar. 7, 1937 Saw large, adult (evidently) squirrels run- ning over the hillside. Feb 28, 1937 1 mi. W Avon (salt marsh) Contra Costa Co. Saw workings on ditch or plough slough bisecting Salicoria fields. This near railroad embankment (+50 ft.) Arroyo Mocho, Santa Clara & Alameda Counties. Jan. 5, 1938 Saw three young animals at as many places along the creek from about 2800 feet down to near the mouth in Livermore Valley. Aside Carquinez Straits, vicinity of Crockett, Contra Costa County. June 21, Hunted squirrels on the hills from just west of the bridge (Carquinoz) east to a bit over 1 mi. E of Crockett. Hills low grass- covered - grass in most places + 2 ft. tall. Saw no squirrels in this grass. Only in areas completely devoid of vegetation or almost denuded intermingled with gassy areas were there squirrels. All grass (= gramineae) is now quite dead. Saw 2 squirrels just W of the bridge. At least