Elkarstun 1955 Bufo canorus Jun 26 Trees cut deep on N-facing slopes. Mosquito larvae in the ponds. Ranunculus blooming abundant, corn lilies to 10" but not opened. Grasses to 6-8" green. Willows just leafing out. Air temp. 1° above boggy meadow 14.2°C. Bog temp. 1° below surface 14.0 °C. at 10:50 A.M. Sunny blue skies, moderate westerly wind. Much human litter & disturbance this local area but about melt ponds look good for canorus breeding. 2.4 mi. S of Highway 4 on Highland Lakes road 7800 ft., Alpine Co., Calif. 11:30 A.M. Tadpoles abundant in seepage ponds as Stevens described by Bob Livsey in Feb. 9, 1955 letter to me. Water temp. near bottom where water 3/4" deep 21.2°C. Air temp. 17.5°C. little shade, little breeze here. Sample of tola taken. Farthest developed have very small hind limbs, caddis-fly larvae present. Bottom of seepage pond rotted sedges & grasses overlain by reddish-brown loose silt. Toads scraping detritus, 2 visible green algal bloom. Tola in shallow water <1/2" deep at temp. 27.50°C. It must get well over 30°C. Late afternoon of warm day. Open meadow 100 x 95 yards with seepage flow westward from Bennett Valley. Lodgepole pine border to meadow. Some willows leafed out in boggy areas. Stonefrog frog available for breeding 40-50 yards square. Toads well scattered but still results of very watering. Sedges & grasses to 10-12" height, green lush meadows. Stoneplant 100 yards W of here. No adults out in open, and we