Preface.- Abbreviations.- 1. Leibniz and the English-speaking World: an introductory overview; S. Brown and P. Phemister.- 2. Leibniz’s Debt to Hobbes; G. MacDonald Ross.- 3. Two Opponents of Material Atomism: Cavendish and Leibniz; C. Wilson.- 4. Wilkins, Dalgarno, and the Development of Leibniz’s Theory of Metaphysical Concepts; A. Blank.- 5. 'Un de mes amis'. On Leibniz’s Relation to the English Mathematician and Theologian John Wallis; P. Beeley.- 6. Leibniz and Robert Boyle: Reason and Faith; Rationalism and Voluntarism; S. Brown.- 7. Leibniz and the Cambridge Platonists in the Debate over Plastic Natures; J. E. H. Smith and P. Phemister.- 8. Nouveaux Essais: Conversation or Amicable Contest?; M. Brandt Bolton.- 9. Leibniz, Locke, and the Epistemology of Toleration; N. Jolley.- 10. 'Is the Logic in London Different from the Logic in Hanover?': Some Methodological Issues in Leibniz’s Dispute with the Newtonians over the Cause of Gravity; G. Brown.- 11. The Harmony of the Leibniz-Berkeley Juxtaposition; S. H. Daniel.- 12. Synechism and Monadology: Charles Sanders Peirce’s Reading of Leibniz; E. Vargas.- 13. How did B. Russell make Leibniz into a ‘Fellow Spirit’?; N. Goethe.- 14. Leibniz, Russell and Wittgenstein on Possible and Impossible Notions; O. Nachtomy.- 15. Leibniz and the Personalism of L. E. Loemker; R. J. Mulvaney.- References.- Index.