The philosophy of Jules Lachelier : Du fondement de l'induction, Psychologie et métaphysique, Notes sur le pari de Pascal, together with contributions to Vocabulaire technique et critique de la philosophie, and a selection from his letters / transl. [from the French] and introd. by Edward G. BallardStudies in Whitehead's philosophy / [contrib. by Edward G. Ballard ... et al.]A symposium on Kant / [by Edward G. Ballard ... et al.]Martin Heidegger: in Europe and America / [sel. and] ed. by Edward G. Ballard and Charles E. ScottThe problem of truth / [by Edward Goodwin Ballard ... et al.]