Here was a lesson, also, in the close relation that everywhere subsists between the distribution of plants and the distribution of animals. These were the only yellow pines noticed in the neighborhood of Chattanooga; and in them, and nowhere else, I found two birds of the Southern pine-barrens, the red-cockaded woodpecker and the yellow-throated warbler. At the base of the tower, when I finally descended, I paused a moment to look at a cluster of graves, eight or ten in all, unmarked save by a flagging of small stones; one of those family or neighborhood burying-grounds, the occupants of which--happier than most of us, who must lie in crowded cities of the dead--repose in decent privacy, surrounded by their own, with no ugly staring white slabs to publish their immemorable names to every passer-by. From the hill it was but a few steps to the Snodgrass house, where a woman stood in the yard with a young girl, and answered all my inquiries with cheerful and easy politeness. None of the Snodgrass family now occupied the house, she said, though one of the daughters still lived just outside the reservation. The woman had heard her describe the terrible scenes on the days of the battle. The operating-table stood under this tree, and just there was a trench into which the amputated limbs were thrown. Yonder field, now grassy, was then planted with corn; and when the Federal troops were driven through it, they trod upon their own wounded, who begged piteously for water and assistance. A large tree in front of the house was famous, the woman said; and certainly it was well hacked. A picture of it had been in "The Century." General Thomas was said to have rested under it; but an officer who had been there not long before to set up a granite monument near the gate told her that General Thomas didn't rest under that tree, nor anywhere else. Two things he did, past all dispute: he saved the Federal army from destruction and made the Snodgrass farmhouse an American shrine.