Preface; 1. New experiments on sound; 2. Explanation of the harmonic diagram; 3. Description of the kaleidophone, or phonic kaleidoscope; 4. Experiments on audition; 5. On the resonances, or reciprocated vibrations of columns of air; 6. On the transmission of musical sounds through solid linear conductors, and on their subsequent reciprocation; 7. On the figures obtained by strewing sand on vibrating surfaces, commonly called acoustic figures; 8. An account of some experiments to measure the velocity of electricity and the duration of electric light; 9. An account of several new instruments and processes for determining the constants of a voltaic circuit; 10. On the thermo-electric spark; 11. Description of the electro-magnetic clock; 12. Enregistreur electromagnetique pour les observations metorologiques; 13. Note sur le chronoscope electromagnetique; 14. An account of some experiments made with the submarine cable of the mediterranean electric telegraph; 15. On the position of aluminum in the voltaic series; 16. Telegraphe automatique ecrivant; 17. On the circumstances which influence the inductive discharges of submarine telegraphic cables; 18. Description of the telegraph thermometer; 19. On a new telegraphic thermometer, and on the application of the principle of its construction to other meteorological indicators; 20. On the augmentation of the power of a magnet by the reaction thereon of currents induced by the magnet itself; 21. On a cause of error in electroscopic experiments; 22. Experimental verification of Bernouilli's theory of wind instruments; 23. Remarks on Purkinje's experiments; 24. On the prismatic decomposition of electrical light; 25. Contributions to the physiology of vision. On some remarkable, and hitherto unobserved, phenomena of binocular vision; 26. On a singular effect of the juxtaposition of certain colours under particular circumstances; 27. On a means of determining the apparent solar time by the diurnal changes of the plane of polarization at the North Pole of the sky; 28. Experiments on the successive polarization of light, with the description of a new polarizing apparatus; 29. Note relating to M. Foucault's new mechanical proof of the rotation of the earth; 30. On Fessel's gyroscope; 31. On the formation of powers from arithmetical progressions; 32. Interpretation of an important historical document in cipher; 33. Instructions for the employment of Wheatstone's cryptograph; 34. Reed organ-pipes, speaking machines, etc.; 35. On the vibrations of columns of air in cylindrical and conical tubes.
