in Thoreau’s Journal:

The autumnal tints grow gradually darker & duller— They are doing to a crisp.  But not less rich to my eye  —  And now a hill side near the river exhibits the darkest crispy reds and browns of every hue all agreeably blended—  At the foot next the meadow stands a front rank of smoke like maples bare of leaves—intermixed with yellow birches. Higher up red oaks of various shades of dull red—with yellowish perhaps black oaks intermixed—and walnuts now brown—& near the hill top or rising above the rest perhaps a still yellowed oak….