----------------- HES POSTING ----------------- Hebert & Ekelund's splendid book is the obvious choice. Vauban, Charles Ellet, Jr. & Dionysius Lardner's names should be added to that of Dupuit. Two engineers have also influenced Walras (Achylle-Nicholas Isnard, whose Traite des richesses 1781 is available through gallica.fr and Louis Poinsot [Elements de statique. (1803).] Theocharis' book, Early developments of mathematical economics, is useful in describing some of the theories of engineer economists. Nicholas J. Theocarakis ------------ FOOTER TO HES POSTING ------------ For information, send the message "info HES" to [log in to unmask]