OF THE PERIODICITY OF THE AURORA BOREALIS. 



59 



17GG. 



Oct. 12. Oxford. Swinton 4 



1767. 



i N. Comra. Petrop. XIV. 589. 

 2 Thompson's Meterology, p. 350. 

 8 Gilbert. Ann. LXVII. 48. 

 4 Phil. Trans. LVII. 108. 



Jan. 18. 

 Feb. 18. 



" 19. 

 July 20. 



" 20. 



Aug. 6. 



6. 



" 6. 



" 7. 

 Sept. 14. 

 Oct. 2. 



" 26. 



" 28. 

 Nov. 5. 



" 14. 

 Dec. 5. 



« 5. 



" 5. 



" 5. 



" 6. 



" 26. 



Jan. 5. 



" 5. 



" 5. 



" 5. 

 Feb. 26. 



" 27. 



" 27. 

 Mar. 1. 

 Apr. 20. 

 June 9. 



" 28. 



" 29. 

 July 2. 



" 7. 



» 7. 



St. Petersburg. Braun. 

 Cambridge. Winthrop. 

 St. Petersburg. Braun. 

 Cambridge. Winthrop. 

 Newport, R. I. Stiles. 

 Cambridge. Winthrop. 

 Paris. Messier. Reuss. 1 Salem. 

 Newport, R. I. Stiles. Loomis. 

 Newport, R. I. Stiles. 

 Cambridge. Winthrop. 

 Cambridge. Winthrop. 

 lakutsk. Islenieff. 2 



Pilgram. 



lakutsk. Islenieff. 

 lakutsk. Isleneiff. 

 Cambridge. Winthrop. 

 Newport, R. I. Stiles. 



Lovering. 



Lovering. 

 Loomis. 

 Lovering. 



Loomis. 

 Lovering. 

 Lovering. 



Felt. 



Lovering. 

 Loomis. 



Berlin. Beguelin. 3 Paris. Messier. 

 Gottingen. 6 Boue. 

 Normandy. Turgot. 6 

 lakutsk. Islenieff. 



1769. 



Lovering. 



Cambridge. Winthrop 



Lancaster, Penn? 



Newport, R. I. Stiles. Loomis. 



3/ontmorenci, Prance. Cotte. 8 



Oxford. Swinton. Reuss. 



Cambridge. Winthrop. Lovering. 



Newport, R. 1. Stiles. Loomis. 



lakutsk. Islenieff. 



Newport, R. J. Stiles. Loomis. 



Winthrop. Lovering. 



Winthrop. Lovering. 



Winthrop. Lovering. 



Winthrop. Lovering. 



Winthrop. Lovering. 



I. Stiles. Loomis. 



Winthrop. Lovering. 

 Loomis. 



Cambridge. 

 Cambridge. 



Cambridge. 

 Cambridge. 

 Cambridge. 

 Newport, R. 

 Cambridge. 



« 8. Newport, R. J. Stiles. 

 " 19. Salem. Holyoke. Felt. ; 



i Phil. Trans. LIX. 86. 

 2 N. Acta Petrop. X. 505. 

 8 Mem. de l'Acad. Berlin, 1769, p. 144. 

 4 Phil. Trans. LIX. 367. 

 6 Hannov. Mag. 1768, p. 1654. 

 6 Mem. de l'Acad. 1768, p. 33. 

 i Trans. Amer. Phil. Soc. I. 404. 

 8 Traite" &c. par Cotte, p. 601. 

 » Phil. Trans. LIX. 367. 

 i° Amer. Jour. Sci. XIV. 101. 



Reuss.' 



