Petelka 1943 June 24 1 mi W Hyampom, 1200 ft, Trinity Co., Calif. we photographed it. Along much of the way, we were in sight of Hayfork Dally and observed scattered patches of chaparral along the southwest and south slopes. This, of course, suggests the probable means whereby the burn-lit might move upward and reach the chaparral at 5700 feet where we noted this species on June 19. It would be of interest and value to have an aerial map of this region to determine the interspersion and distribution of chaparral in the main coniferous forest mass which covers most of the area. Our camp at Hyampom is located at the base of the north wall of the more or less enclosed basin in which the town is situated at the east end. In the eastern part of the basin, Hayfork Creek joins its south fork of the Trinity River, the latter continuing west- ward. The flat of the basin is largely glass-covered. To either side of the main stream of the river are cobble washes which are probably filled at high water in spring. Temporary ponds are scattered along these washes along the main stream as well as along the washes,