OX THE PERIODICITY OF THE AURORA BOREALIS. 



83 



Jan. 7. 



8. 



9. 

 10. 

 11. 

 11. 

 12. 

 13. 

 14. 

 15. 

 16. 

 17. 

 17. 

 18. 

 19. 

 20. 

 21. 

 21. 

 22. 

 22. 

 22. 

 22. 

 22. 

 22. 

 23. 

 24. 

 25. 

 25. 

 27. 

 27. 

 28. 

 29. 

 Feb. 3. 



3. 



4. 



6. 



8. 



9. 



9. 

 12. 

 14. 

 15. 

 15. 

 15. 

 15. 

 15. 

 16. 

 17. 



Edsberg. Norway. Wilse. 

 Edsberg. "Wilse. Stockholm. Nicander. 

 RocheUe. Seignette. Stockholm. Nicander. 

 Edsberg. Wilse. Gothaab. Ginge. 

 Edsberg. Wilse. Gothaab. Ginge. 

 Stockholm. Nicander. 



Kendal. 

 Gothaab. 

 Gothaab. 

 Gothaab. 



Dalton. 

 Ginge. 

 Ginge. 

 Ginje. 



Gothaab. Ginge. 

 Stockholm. Nicander. 

 Stockholm. Nicander. 



i " 



Mem. 

 Nova 



Salem. Holyoke. Lovering. Gothaab. GiDge. 



Cambridge. Wigglesworth. Lovering. 



Cambridge. Williams. 



Gothaab. Ginge. 



Gothaab. Ginge. 



Gothaab. Ginge. 



Gothaab. Ginge. Sagan. Preus. 



Mannheim. Hemmer. 



Edsberg. Wilse. Mannheim. Hemmer. 



Sagan. Preus. Bologna. Matteucci. 



Prague. Stmad. Erfurt. Planer. 



Montmorenci. Cotte. 



Gottingen. Gatterer. Stockholm. Nicander. 



Montmorenci. Cotte. 



Gothaab. Ginge. 



Kendal. Dalton. Stockholm. Nicander. 



Kendal. Dalton. Paris. Cassini. 1 



Copenhagen. Bugge. Stockholm. Nicander 



Gothaab. Ginge. Prague. Strnad. 



Edsberg. Wilse. 



Gothaab. Ginge. 



Mannheim. Hemmer. 



St. Petersburg. Euler. 2 



Stockholm. Nicander. 



St. Petersburg. Euler. 



Salem. Holvoke. Lovering. 



Edsberg. Wilse. 



Salem. Holyoke. Lovering. 



Stockholm. Nicander. 



Cambridge. Williams. Gothaab. Ginge. 



Gothaab. Ginge. Ratisbon. Heinrich. 



Cambridge. Wigglesworth. Lovering. 



Cambridge. Williams. 



Salem. Holyoke. Lovering. 



Paris. Cassini. Stockholm. Nicander. 



Padua. Toaldo. Bologna. Matteucci. 



Gothaab. Ginge. Wiirzburg. Egel. 



Minzburg. Egel. Stockholm. Nicander. 



del'Acad. 1787. p. 19. 



Acta Soc. Acad. Pctrop. V. 96 et 320. 



Feb. 18. 



" 19. 



" 20. 



" 20. 



" 21. 



" 21. 



" 22. 



" 22. 

 24. 

 25. 



" 25. 



« 27. 

 Mar. 6. 



« 7. 



" 10. 



" 12. 



» 13. 



« 14. 



" 16. 



" 16. 



" 17. 



" 18. 



" 18. 



" 18. 



" 18. 



" 18. 



" 18. 



" 19. 



" 20. 



" 20. 



" 20. 



" 20. 



" 20. 



" 20. 



" 21. 



" 21. 



" 21. 



" 21. 



" 21. 



" 21. 



" 21. 



" 21. 



" 21. 



" 21. 



" 21. 



Gothaab. Ginge. 

 Gothaab. Ginge. 

 Salem. Holvoke. 

 Edsberg. Wilse. 

 Edsberg. Wilse. 



Sagan. Preus. 



Bugge. 



Lovering. 



Copenhagen. 



Copenhagen. Bugge. 

 Stockholm. Nicander. 

 Sale?n. Holyoke. Lovering. Kendal. Dalton 

 Edsberg. Wilse. Gottingen. Gatterer. 

 Stockholm. Nicander. 



Berlin. Beguelin. Mannheim. Hemmer. 

 Prague. Strnad. 

 Prague. Strnad. 



Mannheim. Hemmer. Stockholm. Nicander. 

 St. Petersburg. Euler. Stockholm. Nicander. 

 Moscow. Stritter. Gothaab. Gin<*e. 

 Stockholm. Nicander. 

 Ronneburg. Dietmann. Boue. 1 

 Gothaab. Ginge. 



Edsberg. Wilse. Mannheim. Hemmer. 

 Sagan. Preus. 



Mannheim. Hemmer. Gothaab. Gin<*e. 

 Edsberg. Wilse. Paris. Cassini. 

 St. Petersburg. Euler. 

 Stockholm. Nicander. 

 Mannheim. Hemmer. Gothaab. Ginge. 

 Sagan. Preus. Munich. Huebpauer. 

 Buda. Bruna. Copenhagen. Bugge. 

 Gothaab. Ginge. Peissenherg. Schwai<rer. 

 Cambridge. Wigglesworth. Lovering. 

 Cambridge. Williams. 

 Salem. Holyke. Lovering. 

 New Haven. Stiles. Loomis. 

 Brussels. Mann. 2 Paris. Cassini. 

 Gothaab. Ginge. 



Cambridge. Wigglesworth. Lovering. 

 ( 'mnbridge. Williams. 

 New Haven. Stiles. Loomis. 

 Edsberg. Wilse. Paris. Cassini. 

 Mannheim. Hemmer. Brussels. Mann. 

 Kendal. Dalton. Geneva. Senebier. 

 Erfurt. Planer. Ratisbon. Heinrich. 

 Stockholm. Nicander. Gottingen. Gatterer. 

 St. Petersburg. Euler. Copenhagen Bugge. 

 Peissenberg. Schwaiger. Berne. Studer. 

 RocheUe. Seignette. Sut:. Spriingli. 



1 Sitz. Bericht. Wien. XLV.445. 



2 The observations at Brussels for 1787 do not appear to have 

 been published in full either in the Mem. de 1'Acad. Brux.. 

 or the Ephem. Soc. Met. Palat. There were thirty-three in all. 

 Mem. de l'Acad. Brux. V. 457. 



