CHAPTER IV.

HOW TO DISCOVER AND PROVE THE SERIES.

§ 1. The data of Probability are established by experience; 2. Though in practice most problems are solved deductively. 3-7. Mechanical instance to show the inadequacy of any à priori proof. 8. The Principle of Sufficient Reason inapplicable. 9. Evidence of actual experience. 10, 11. Further examination of the causes. 12, 13. Distinction between the succession of physical events and the Doctrine of Combinations. 14, 15. Remarks of Laplace on this subject. 16. Bernoulli's Theorem; 17, 18. Its inapplicability to social phenomena. 19. Summation of preceding results.