This is Volume X of seventeen in a collection of works on the Philosophy of Mind and Psychology in the Library of Philosophy which was designed as a contribution to the History of Modern Philosophy under the heads: first of Different Schools of Thought-Sensationalist, Realist, Idealist, Intuitivist; secondly of different Subjects-Psychology, Ethics, Political Philosophy, Theology. Originally published in 1970, this volume brings together essays on Hypothesis and Perception.

Preface; Part 1 Critical; Chapter 1 Prevalent views of Science; Chapter 2 Induction; Chapter 3 The Empiricist Treatment of Deduction and Necessity; Chapter 4 Empiricist Reformers; Part 2 Historical; Chapter 5 Non-Empirical Aspects of Scientific Procedure; Chapter 6 'Deduction from Phenomena'; Chapter 7 Scientific Advance; Part 3 Epistemological; Chapter 8 Perception; Chapter 9 Question and Answer; Chapter 10 The Logic of Construction; Chapter 11 The Dialectic of Progress; Chapter 12 Science and Truth;