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[[Start Page]] 6 [[End Page]] [[Start Page]] 7 Cañon Contreros, Feb. 24, 1949. We drove to 10,200 feet and collected in the fir woods there. The fir belt starts at 9,500 and continues as high as we went. Below the fir belt is pine, with a sprinkling of oak. This shows a gradual transition to much oak and little pine, and finally no pine. Small side cañons have streams fed by mt. springs. All stream beds + spring sources are quite rocky. Carla Wagner and I worked up a small stream, turning rocks in and on the edges of the stream. Nothing there. I tried rocks on the side of the hill, no luck till I got to the edge of a small wet area, fed by several springs. I found 3 Oedipus under rocks, the underside being fairly dry, or only damp. There were no salamanders in the very wet areas. I went down about 150 ft to a level area which had been used as a campsite, and which was damp all over, as a small stream crossed it. It was almost marshy. Again in the dryer part, I turned a rock and found a Hyla Lafrentzi. He did not try to get away. Helmut says he has never seen the species before. Cañon Contreras, Feb. 25, 1949. A.M. We arrived in the woods before the sun had fully come up, and the air and ground were quite chilly. I followed a small canyon, with what must be a fairly permanent waterflow. I found nothing, neither on the stream or in