ON THE PERIODICITY OF THE AURORA BOREALIS. 



153 



Kingston. Lefroy. 



Fort Confidence. Richardson. 



Aix-la- Chapelle. Heis . 



Cambridge. Bond. Lovering. 



Worcester. Chandler. 1 New York. Hough. 



Kingston, Toronto, and London. Lefroy. 



Halifax, Bruce Mines, Lake Huron. Lefroy. 



Newfoundland and Quebec. Lefroy. 



Fort Confidence. Richardson. 



Christiania. Hansteen. 



Worcester, Mass. Chandler. 



New Haven. Herrick. Newton and Loomis. 



Providence. Caswell. New York. Hough. 



Quebec, Montreal, and Kingston. Lefroy. 



Toronto, London, and Bruce Mines. Lefroy. 



Fort Confidence. Richardson. 



Christiania. Hansteen. Makerstoun. Broun. 



Worcester. Chandler. New York. Hough. 



New Haven. Herrick. Newton and Loomis. 



Fort Confidence. Richardson. 



Makerstoun. Broun. 



New York. Hough. 



Fort Confidence. Richardson. 



Christiania. Hansteen. 



Toronto. Lefroy. 



Fort Confidence. Richardson. 



Fort Confidence. Richardson. 



Fort Confidence. Richardson. 



New York. Hough. 



Toronto and Halifax. Lefroy. 



Fort Confidence. Richardson. 



Christiania. Hansteen. 



Toronto and London. Lefroy. 



Fort Confidence. Richardson. 



New York. Hough. Toronto. Lefroy. 



Christiania. Hansteen. 



New York. Hough. 



Toronto and London, C. W. Lefroy. 



Newfoundland and Kingston. Lefroy. 



Fort Confidence. Richardson. 



Toronto. Lefroy. 



New Haven. Bradley. Newton and Loomis. 



Toronto and Halifax. Lefroy. 



New York. Hough. 



Quebec, Montreal, and London. Lefroy. 



Halifax. Lefroy. 



Fori Confidence. Richardson. 



Fort Confidence. Richardson. 



1 Seventeenth Report of the Lunatic Asvlutn, p. 68. 



VOL. X. 20 



Apr. 11. 



Kingston. Lefroy. 



Christiania. Hansteen. 



New York. Hough. 



Montreal, Toronto, and Halifax. Lefroy. 



Fort Confidence. Richardson. 



Christiania. Hansteen. 



Quebec. Lefroy. 



Fort Confidence. Richardson. 



Christiania. Hansteen. 



Newfoundland. Lefroy. 



Fort Confidence. Richardson. 



Christiania. Hansteen. 



New York. Hough. 



Toronto, London, and Halifax. Lefroy. 



Makerstoun. Broun. Christiania. Hansteen. 



Worcester. Chandler. New York. Hough. 



Montreal and Halifax. Lefroy. 



Newfoundland and Quebec. Lefroy. 



Makerstoun. Broun. 



Quebec and Montreal. Lefroy. 



Newfoundland. Lefroy. 



Fort Confidence. Richardson. 



New York. Hough. 



New York. Hough. 



Toronto and Halifax. Lefroy. 



Newfoundland. Lefroy. 



Quebec and Halifax. Lefroy. 



Fort Confidence. Richardson. 



Newfoundland and Toronto. Lefroy. 



Kingston and London. Lefroy. 



Newfoundland and Montreal. Lefroy. 



New York. Hough. 



Newfoundland. Lefroy. 



Newfoundland. Lefroy. 



Newfoundland and Quebec. Lefroy. 



London, C. W. Lefroy. 



Halifax ? and Quebec. Lefroy. 



New York. Hough. 



Newfoundland. Lefroy. 



Quebec and Halifax. Lefroy. 



Halifax. Lefroy. 



Newfoundland and Halifax. Lefroy. 



Cambridge. Bond. Lovering. 



Newberry. Johnson. 



Toronto and London. 

 Halifax and Toronto. 

 Toronto. Lefroy. 

 Toronto. Lefroy. 

 Toronto ? Lefroy. 

 Kingston and Toronto. 



Lefroy. 

 Lefroy. 



Lefroy. 



