J Rodgers-1937 Itinerary, etc. April 7 Black Hawk Ranch, 4½ mi. SSE Mt. Diablo, Contra Costa Co., Calif. the east side of Livermore Valley. Passajers Creek flows south into Livermore Valley from its head to the NE of no, against the head of Marsh Creek. The steep south-facing slope up which we just climbed is covered with black lodge and some [illegible]. About two-thirds of the way up is a rocky cliff around which we saw two Prairie Falcons flying. The top of the ridge (running WNW-ESE) is grass covered, with a few clumps of Umbellulana — hollow and may outcropping of rocks. The north- facing slopes covered with oaks and buckey, and many big areas of a blue lupin which stands two or three feet high (bowl). We collected four skinks, two gopher snakes, a Leptodira [illegible], a Lampetis g. Buytis and about 30 Selopoma. None of the Selopoma are in the catalog; some were released in my backyard (2019 Vine St., Berkeley) and some were given to Emmitt Cooper to send to Michigan. We also collected