Oct. 1, 1950 Drove today north into Lake County to investigate some fernprospect zonea localities. Stopped for a few minutes by the Russian River just north of the Mendocino-Sonoma County line. A few minutes south along the riverbank and along tributary Ash Creek disclosed no frogs. Water temperatures in the river and creek were 19.6 and 19.8°C respectively. The air at 1' was 15.5°C, the weather clear. This was about 10:00 AM. Jbs of Sclope. Hopland, Mendocino County: The hills surrounding the valley in which Hopland is located are covered with thick oak woodland. Probably the L. zygata recorded from Hopland did not come from the valley, but from somewhere on the surrounding hills. Hopland - Lakeport road, 6 miles west of junction with State Hwy 29, Take 6. This is reasonably close to the "4 mi sw Lakeport" locality and probably in the same vegetational belt. The general physiognomy of the region is that of