The border zones of exact science (November 1896) -- Some thoughts on psychology (May 1897) -- Inaugural address, upon asssuming the chairmanship of the Zofingia Club (winter semester 1897/98) -- Thoughts on the nature and value of speculative inquiry (summer semester 1898) -- Thoughts on the interpretation of Christianity, with reference to the theory of Albrecht Ritschl (January 1899)
