Rostores 1947 Journal 19. Sept. 2. 3 1/2 mi. E, 1/2 mi N, McChesney Mt., 1900', San Luis Obispo Co., California. On the way to the Davis Martinez Cabin which we will make our headquarters for about a week. The cabin is in a Blue oak clearing on a side branch of Hay Canyon at about 1900'. Just to the north is an extensive area which was burned in the fire of August 1941 which burned a large area on McChesney Mt. The burned area is coming up in a mixed growth of Adenostoma and Eriodictyon californicum. There is a good well by the cabin but the main stream in the canyon is dry except for a few scattered pools which show some encrusting of salts around the edges. After setting up camp I explored the canyon bottom & Bill Salt looking for places to set steel traps. Found Selaginella bigelovii abundant along the canyon walls and even on exposed rocks in the burned over chaparral - also collected some Pityrogramma and Cheilanthes californica which I set in water to unroll overnight. After supper set one steel trap by a log in the saddle west of camp. Heard Poor will & screech owl in the evening. A red breasted nut hatches & a young clipping sparrow came up onto the truck. Sept 3. Left camp at 5:45 & E McMillan & Th Miller for the top of McChesney Mtn. The way up goes through burned out Adenostoma chaparral and open Blue Oak grassland In the former we found places where Rufous crowned Sparrows were common. Up near the top of the mountain there were scattered Coulter Pines in the chaparral and in