Through the open window, by which the sunlight was streaming in, Glen caught a glimpse of a line of cottonwood-trees, which, as he had long ago learned, denoted the presence of a stream in that country. To a boy who dearly loved to bathe, and had not washed for two whole days, nothing could be more tempting. Nor was Glen long in jumping from the window, running down to the cottonwoods, throwing off his clothes, and plunging headforemost into the cool waters.