Contents. - v. 1. <The unknowable, by G. Santayana>. v. 2. <Knowing and acting, by J. A. Smith>. - v. 3. <Immediate experience and mediation, by H.H. Joachim>. -v. 4. <Philosophy and the Christian religion, by C.C.J. Webb>. - v. 5. <Scientific method in philosophy, by B. Russel>. - v. 6. <Biological fact and the structure of society, by W. Bateson>. - v. 7. <The evolution of Kinship, by E.S. Hatland>. - v. 8. <The optimism of Butler's Analogy, by H.S. Holland>