Introduced the theory of localization of cerebral function, although in a somewhat fantastic form. This pioneer attempt to map out the cerebral cortex according to function gave rise to the pseudo-science of phrenology. The work also contains some important additions to the knowledge of cerebral anatomy. Gall and Spurzheim ended their collaboration after the first 146pp. of Vol. 2. The remainder was written by Gall alone. The first edition was issued in two formats: (1) text and atlas all in folio and (2) text in quarto and atlas in folio. The second edition was revised by Gall, and published without the plates, but with a collection of replies to his critics as Sur les fonctions du cerveau et sur celles de chacune de ses parties. 6 vols., 8vo, Paris, l’Auteur, 1822-25. English translation of second edition, 6 vols., Boston, 1835.