in Thoreau’s Journal:
It is a warm and very pleasant afternoon. I walk along the river-side in Merrick’s pasture. Some single red maples are very splendid now; the whole tree bright scarlet against the cold green pines, while very few trees are changed, it is a most remarkable object in the landscape, seen a mile off. It is too fair to be believed, especially seen against the light. Some are a reddish or else greenish yellow, others with red or yellow cheeks. I suspect that the yellow maples had not scarlet blossoms.