Concord, Mass. Thoreau writes in his journal:
Bought a book at Little & Brown’s, paying a nine-pence more on a volume than it was offered me for elsewhere . . . (Journal, 13:29-30).
Cambridge, Mass. Thoreau checks out Histoire des animaux d’Aristotle, avec la traduction françois par M. Camus and Θεοφραστου Ερεσιου τα σωζομενα, volume 2 from Harvard College Library (Companion to Thoreau’s Correspondence, 292).