I History.- 1 Introductory Notes.- 2 Hobbe’s Contribution to Abstract Political Science.- 3 How Expenditure of the Tax Proceeds Came to be Disregarded in the Theory of incidence.- 4 Historical Notes: Pythagoreans, Reverend C. L. Dodgson, Knut Wicksell and Lord Keynes.- 5 Some Notes on the Development Structure of the Theory of Committees.- II Epistemology.- 6 Introductory Notes.- 7 Some Important Distinctions: The Traditional Distinction Between Instrumental and Independent Actions.- 8 Rational Behavior.- 9 The Mechanism of Hedonistic Choice.- 10 The Commensurability of Intensities of Desires (Pleasures).- 11 That the same Mathematical Model Applies in Epistemology.- 12 The Assumptions — Imperfect Knowledge, Divided Expectationsand the Discount.- III Logrolling.- 13 Introductory Notes.- 14 On-Logrolling.- 15 Logrolling.- 16 Wicksell’s Use of the Theory of Committees in Public Finance.- 17 The Geometrical Theory of a Special Majority Geometry.- 18 The Theory of an International Committee Requiring a Unanimous Decision.- 19 Dicey on Logrolling.- IV Economics.- 20 Introductory Notes.- 21 The Concept of Cost in Economics.- 22 Wicksteed’s Theorem That the Concept of Supply Could be Dispensed With and Its Narrower and Wider Implications.- V Psychology.- 23 Introductory Notes.- 24 The Theory of Relative Utility Following the Second Austrian School.- 25 Definition of Relative Weights and Hypothesis That Choice Follows the Condorcet or Borda Criterion.- 26 A Suggested Application of the Theory of Committees in Value and Probability.- Appendix I.- Curriculum Vitae of Duncan Black.