This is the nursery, or summer residence, of many kinds of birds. The "camp-bird," the Rocky Mountain jay, is a resident. Here in spring the white-crowned sparrow sings and sings. During early summer the solitaire, the most eloquent songster I have ever heard, comes up from his nest just down the slope to pay a tribute of divine melody to the listening, time-worn trees. In autumn the Clarke crow appears and, with wild and half-weird calls of merriment, devours the fat nuts in the cones of the limber pine. During this nutting, magpies are present with less business than at any other time and apparently without a plan for deviltry. Possibly they are attracted and entertained by the boisterousness of the crows. [Illustration: A TIMBER-LINE LAKE IN NORTHWESTERN COLORADO] Lovely wild-flower gardens occupy many of the openings in this torn and bristling edge of the forest. In places acres are crowded so closely with thrifty, brilliant bloom that one hesitates to walk through and trample the flowers. Here the columbine, the paintbrush, the monument-plant, and scores of other bright blossoms cheer the wild frontier. Rarely are strangers in the mountains thoroughly aroused. They need time or explanation in order to comprehend or appreciate the larger scenes, though they do, of course, have periodic outbursts in adjectives. But at timber-line the monumental scene at once has the attention, and no explanation is needed. Timber-line tells its own stirring story of frontier experience by a forest of powerful and eloquent tree statues and bold, battered, and far-extending figures in relief. Only a few of the many young people whom I have guided to timber-line have failed to feel the significance of the scene, but upon one party fresh from college the eloquent pioneer spirit of the place made no impression, and they talked glibly and cynically of these faithful trees with such expressions as "A Doré garden!" "Ill-shapen fiends!" "How foolish to live here!" and "Criminal classes!" More appreciative was the little eight-year-old girl whose ascent of Long's Peak I have told of in "Wild Life on the Rockies." She paid the trees at timber-line as simple and as worthy a tribute as I have ever heard them receive: "What brave little trees to stay up here where they have to stand all the time with their feet in the snow!" The powerful impressions received at timber-line lead many visitors to return for a better acquaintance, and from each visit the visitor goes away more deeply impressed: for timber-line is not only novel and strange, it is touched with pathos and poetry and has a life-story that is heroic. Its scenes are among the most primeval, interesting, and thought-compelling to be found upon the globe. The Chinook Wind The Chinook Wind