The Logic of Scientific Knowledge.- Levels of Knowledge and Stages in the Process of Knowledge.- I. Differences Between the Problems, Sensation-Thought and Empirical-Theoretical.- II. Basis of the Division of the Sentences of the Language of Science into Levels.- III. The Semantic System: Admissible Objects of Thought and Modes of Expression.- IV. Empirical and Theoretical Objects of Science.- V. Sentences Which Express Facts and Sentences Which Formulate Laws.- VI. Stages in the Process of Knowledge.- 1. Observation.- 2. Analysis of observation protocols and discovery of empirical connections.- 3. Prediction by means of facts and empirical connections.- VII. Types of Explanation of Empirical Connections.- VIII. Stages in the Process of Knowledge, II.- 4. Elaboration of the basic ideas and discovery of the fundamental relations, basic to explanation: formation of scientific theory.- 5. Deduction of some theoretical laws from other theoretical laws: development of theory.- 6. Explanation of scientific facts, i.e., discovery through empirical relations of corresponding theoretical models.- 7. The discovery of empirical connections through theoretical descriptions.- Problems of the Logical-Methodological Analysis of Relations Between the Theoretical and Empirical Planes of Scientific Knowledge.- I. The Traditional Inductivist Approach to the Problem of the Relations Between Theoretical and Empirical Knowledge and its Limitations.- II. Critique of the Neopositivist Approach to the Analysis of the Relations Between the Theoretical and Empirical Levels of Scientific Knowledge.- III. Contemporary Logic of Science on the Relations Between Theoretical and Empirical Knowledge: The Connection of the Theoretical and Empirical Levels of Knowledge in the Structure of Hypothetical-Deductive Theory.- IV. Contemporary Logic of Science on the Relations Between Empirical and Theoretical Knowledge: The Problem of the Establishment of Logical Correspondence Between Theoretical and Elƒ-