The beach deposits in a bay of Trout Lake in northern Wisconsin, are divided into eight textural zones which parallel the shore. The sediments of these zones are described and compared with each other, using data derived from 103 mechanical analyses. Samples collected at the same points on the beach, and others collected at points of equal distance from the water's edge, are compared to show textural changes taking place on the beach. The accuracy of sampling is tested by eight sets, of four samples each, taken at the same time and place.

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