in Thoreau’s Journal:

The autumnal tints about the pond are now perfect—nothing can exceed the brilliancy of some of the maples which stand by the shore & extend their red banners over the water—why should so many be yellow?  I see the browner yellow of the chestnuts on Pine Hill—  The maples & hickories are a clearer yellow.  Some white oaks are red—  The shrub oaks are bloody enough for a ground—  The red & black oaks are yet green.