Observations of the Aurora Borealis, 1850-51. 63 



in the -winter of aurora seen in Canada which escaped notice at 

 every northern station ; the number seen at northern stations 

 which do not descend to Canada is of course considerable, as 

 will appear from Table III. 



Table II. — Showing the number of nights the aurora is recorded 

 at each station in 1850 and 1851, and the total number of 

 nights in each month in which there is evidence at present to 

 show that the phsenomenon was developed somewhere or other 

 on the American continent. The returns will, no doubt, be 

 extended, and some observations at present omitted as doubt- 

 ful be confirmed, and included in the totals at certain stations. 



(a) From 16th to 30th June, (b) Observed by Sergeant Maiden at Grose Isle, 

 near Quebec— none observed at Quebec, (c) Including observations at Grose Isle. 

 (d) Begins on the 30th. (e) From 1st to 18th. (/) Begins on the 30th. 

 Ig) Begins on the 21 st. 



* Twilight too strong, t Register ends. 



