Nouveaux éléments d’analyse. Calcul infinitesimal géométrie. Physique théorique. Tome I–IV. Tome I. Variables Réelles. Tome II. Variables Complexes. Tome III. Équations Différentielles. Tome IV. Équations aux Dérivées Partielles.
4 volumes. 25.5 x 16.5 cm, paperbacks, viii, 204, (4) pages, vi, 214, (2) pages, vi, 196, (4) pages & vi, 206, (2) pages. Text in French, covers slightly worn, previous owner's name, few pages with some notes in pencil, paper browned, volume 4 more browned then the others, still in very good condition, see picture.
Cours de la Faculte des Sciences de Toulouse. Four-volume set on infinitesimal calculus, geometry, and theoretical physics by M.A. Buhl.