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Editor's preface; Fragment of author's preface; 1. Experiment 1; 2. On the charges of electrified bodies; 3. On electrical work and energy; 4. The electric field; 5. Faraday's law of lines of induction; 6. Particular cases of electrification; 7. Electrical images; 8. Capacity; 9. Electric current; 10. Phenomena of an electric current which flows through heterogeneous media; 11. Methods of maintaining an electric current; 12. On the measurement of electric resistance; 13. On the electric resistance of substances.