Människans dolda krafter (The Energies of Men) ; Krigets moraliska ekvivalent (The Moral Equivalent of War) ; Universitetsbildningens sociala värde (The Social Value of College-Bred) ; Om några psykiska verkningar av en jordbävning (On Some Mental Effects of the Earthquake) ; En psykisk forskares slutuppgörelse (Final Impressions of a Phychical Researcher) ; Herbert Spencer (Herbert Spencer's Autobiography) ; Ralph Waldo Emerson (Adress at the Emerson Centenary in Concord)