NY, Harper & Brothers, (1887). His first book, published when he was Assistant Professor of Philosophy at Michigan University and when, according to the author, psychology was just coming into its own, having attained "independent standing," rather than being an extension of logic, ethics, metaphysics and philosophy. Signed by Dewey on the front flyleaf, using an apparent symbolic notation of elevating the two "E's" of his last name (though the precise symbolism of this is unknown to us). Both the front and rear endpages have been covered in notes and doodles by G.E. McIlwain, presumably a student of Dewey's. Some notations in the text as well. Rear hinge cracked; a good copy, without dust jacket, probably as issued. An uncommon and notable first book, seldom found signed. [#034871] $4,500