d'Alembert, J. le Rond, et al. — Encyclopédie méthodique. Mathématiques. Tome premier, tome second, tome troisième. [Complete text].

Paris, Panckoucke; Liège, Plomteux, 1784-1785. Three volumes in four. Large 4to (27.5 x 21.5 cm). 1807 pp. [cxiv, 722; 787; 184]. Publisher's grey boards with printed label on the spines, and large printed leaf, "Table des objects" mounted on the third volume's front board. = The rare mathematics section of the famous 'Encyclopédie'. A detailed collation is as follows: Volume 1 (1784) title to the 'Encyclopédie', title to the 'Mathematiques', cxiv pp. (Discours préliminaire), pp. 1-721 [A-EXT; actually Abaissement-Extrème], [i] (errata); Volume 2 (1785), title to the 'Encyclopédie', title to the volume; pp. 1-787 (FAC-ROU; actually Face-Rudolphines); Volume 3 (1789), title to the 'Encyclopédie', title to the volume, pp. xxviii, 1-56, 1-184 (SAG-SUR, actually Saggitaire-Zubenel-Chemali, additions et corrections, table de lecture), title 'Dictionnaire des jeux, faisant suite au tome III des mathématiques', iii, 316 pp. Later, two more parts on mathematical games and game-theory were published. These are more common, and not included. Neither are the very rare plates. Boards a bit worn; the large "table des objets", which is an index to the preliminary part, creased, and with a tear; otherwise, a very good set.