Pateika 1943 June 13 2 mi SE Bergum, 1650 ft; Tehama Co., Calif. between high chaparral and Adenostoma is Eriodictyon. The latter shrub also occurs in pure colonies in patches on the dryer parts of the slope. Areas of high chaparral most of are present over the south slope along the draws and drainage pockets. Adenostome covers more than 50% of the upper two thirds of the slope. Near the ridge of the south slope, to the east of the Forest Service road mentioned earlier, there is an area vegetated with a mixture of blue oak, black oak (Q. kelloggi), and digger pine. Rhus diversiloba is common as a small shrub in openings apparently left by a forest burn perhaps two years ago. Several small streams pass through this area. A yellow-blooming rosaceous (Hypericum perforatum) annualess common along these streams. Also dense tangles of shrubs, grape (Vitis californica), and a variety of annualls occur along certain parts of the streams. Two trees of a coastal species (Q. garryana) oak were noted growing along the immediate border of one of the streams. About 40 mouse traps were set out in the vicinity of Camp. Half of these were and among placed along the open vegetation of a