19" x 31" - $445.00   Spring time, with its blooming dogwood and thundering water falls, is the popular season for tourists in Yosemite Valley. Last spring, even the rivers were a torrent of foam and mist boiling out of the park. In the fall, I returned to the park, driving along the river toward the entrance. What had been crashing white water was now a silent stream mirroring the autumn foliage and granite walls. I was reminded again of the many moods that water can create.