R. Zweifel 219 Rana sierrae French Joe Meadow, 3mi. SW Johnswdale, Tulare Co., Calif. 2074-2107 AZ April 26, 1953 A very moist meadow, elevation about 6000' (from Tozer Sheet), in the yellow pine, incense cedar, white fir forest. Young Rana sierrae were found to be very abundant in a small, weedy pond in the meadow. 14 was taken here and many more seen. No adults were seen, however. Water temperature 20.0°C. Another nearby pond contained very few frogs but many large tadpoles. One of the five captured has the front legs nearly ready to appear. The tadpoles frequent the farther edge of the pond where the water temperature at 3:00 PM was 23.4°C. It is obvious that the tadpoles overwintered as such, but what about the young frogs? I am inclined to the belief that they overwintered as tadpoles and transformed soon after the snow melted. Perhaps the tadpoles in the "frog" pond were more advanced than the others when overtaken by winter. May 8 2108 AZ Tadpoles preserved today. In some the front legs have appeared and tail resorption has begun.