SKETCH OF JOSEPH LOVERING. 695 



1. "An Account of the Magnetic Observations made at the Magnetic Observa- 

 tory of Harvard College." In two parts (" Memoirs of the American Academy," 

 vol. ii, 1846.) 



2. " On the Secular Periodicity of the Aurora Borealis " (ibid., vol. ix). 



3. " On the Determination of Transatlantic Longitudes by Means of the Tele- 

 graphic Cables"' (ibid., 1867). 



4. "Catalogue of Auroras observed, mostly at Cambridge, after 1838" (ibid., 

 vol. x, 1868). 



5. " On the Periodicity of the Aurora Borealis." In two parts (ibid., with 

 plates, 1868). 



6. " On the Causes of the Difference in the Strength of Ordinary Magnets and 

 Electro-Magnets, of the same Size and Shape." (" Proceedings of the American 

 Academy," vol. ii). 



7. "On the Law of Continuity " (ibid.). 



8. " On the Aneroid Barometer " (ibid.). 



9. "Electrical Experiment " (ibid., vol. iv). 



10. " On the Connection of Electricity with Tornadoes " (ibid., vol. ii). 



11. " On Coronse and Halos" (ibid.). 



12. " On the Spectroscope " (ibid., vol. iii). 



13. " On the Bioscope " (ibid.). 



14. "Apparatus for Eapid Botations " (ibid.). 



15. " Shape of Luminous Spots in Solar Eclipses " (ibid.). 



16. "Notice of the Death of John Farrar" (ibid.). 



17. " Notice of the Death of Melloni " (ibid.). 



18. "New Apparatus and Experiments in Optics and Acoustics " (ibid.). 



19. " Arago's Opinion of Table-Moving" (ibid.). 



20. " On Fessel's Gyroscope " (ibid.). 



21. " Apparatus to regulate the Electric Light " (ibid.). 



22. " Does the Mississippi Kiver flow Up-hill ? " (ibid.). 



23. "Beport on Hedgcock's Quadrant" (ibid.). 



24. " On the Boomerang " (ibid., vol. iv). 



25. " Beport on Meteorological Observations " (ibid.). 



26. " On the Ocean Cable " (ibid.). 



27. " On the Polarization of the Light of Comets " (ibid.). 



28. " Beport on the Polar Expedition of Dr. I. I. Hayes " (ibid.). 



29. " On Eecords of the Aurora Borealis " (ibid.). 



30. " First Observations on the Aurora in New England " (ibid.). 



31. "Notice of the Death of Biot" (ibid., vol. ii). 



32. " On the Velocity of Light and the Sun's Distance " (ibid.). 



33. " Notice of the Death of O. M. Mitchell " (ibid.). 



34. " On the Optical Method of studying Sound " (ibid., vol. vii). 



35. "On the Periodicity of the Aurora Borealis " (ibid., vol. viii, 1873). 



36. " On the French Eepublican Calendar " (ibid.). 



37. "Application of Electricity to the Motion of Tuning-Forks" (ibid.). 



38. " On Optical Meteorology " (ibid.). 



39. " On Transatlantic Longitudes " (ibid.). 



40. " Notice of the Death of William Mitchell " (ibid.). 



41. " Notice of the Death of Faraday " (ibid). 



42. " Notice of the Death of David Brewster " (ibid.). 



43. " Notice of the Death of J. W. F. Herschel " (ibid.). 



44. " Notice of the Death of Christopher Hansteen " (ibid., vol. ix). 



