Pretty soon she is at her usual relaxation, looking for shells, ivy berries and roots of wild vines to adorn that never-attainable home. The kindly, generous twilight, so unlike the swift shrift of the Florida levels, still lingers; and presently, amid bits of syenite, volcanic tuff and scoria, she has found this nodule of amygdaloid. It differs from the fossil shells and alluvial pebbles she is used to find, and she is curious about it. I tell the story of the watershed of the Ohio as well as I can--how it was the delta of a great river, fed by the surfage of a continent lying south--eastwardly in the Atlantic; of the luxuriant vegetation that sprang up as in the cypress-swamps of her old home in Louisiana, passing, layer by layer, into peat, to be baked and pressed into bituminous coal, that slops over the flared edges of the basin in Pennsylvania, like sugar in the kettles, and is then burnt to anthracite. I promise her that in some dawn on the culminating peak, when the hills below loom up, their tops just visible like islands in a sea of dusk, I will show her a natural photograph of that old-world delta, with the fog breaking on the lower cliffs like the surf of a ghostly sea. She listens as to a fairy tale, and then I tell her of the stellar crystals concealed in the rough crust of the amygdaloid. She puts it away, and says I shall break it for her when we get home. We have traveled a long way, by different paths, since then, but it has never been broken--never will be broken now.