J. Rodgers - 1940 173B 160 Itinerary, etc. Oct. 12, Austin Cr., 85 ft., 1 mi. S Cazadero, Sonoma Co., Calif. At about 1:25 pm, R.D. Stirton, Harvey Frishy, Joe Marshall, Jacob Frenkel, and I started on the first field trip of the Grinnell Naturalists Society. We crossed the two bridges (San Francisco Bay Bridge and Golden Gate Bridge) and traveled north to Santa Rosa then to Guerneville, down the Russian River to Austin Creek, and up Austin Creek to the Berkeley City Camp. There we met several other carloads of fellows and by dark between 20 and 25 had arrived. The camp is among large redwoods on the west bank of Austin Creek. There had not been much rain so far, and the ground under everything that we turned over was dry. Oct. 13 John Davis and I joined the stream and got a quart of fish. We collected Triturus similans and Rana boylii boylii. Along the stream we saw a water ouzel and three wood ducks. Later in the morning we left camp and traveled west along the north bank of the Russian River and looked for tree mice in the Douglas firs trees. All together five or 6 were found. We (my carload) ate lunch at the beach south of the mouth of the Russian River. We traveled south then southeast to Petaluma, east then south, past the old adobe ford, across Bear Point road to Yallie's, across Carquinez Bridge and Lone. We collected Rana aurora aurora 3 1/2 mi. ENE Petaluma. A papoose was collected by one group Oct 12 near San Anselmo,