374 METKOROLOaiCAL TABLKS. 



Coldest day was the 28th January, when the average height of the thermome- 

 ter for 24 hours, at three observations day and niglit, reached 17°. 

 The greatest fall of rain was on the 18th June, when 1*65 inches fell in twelve 



hours. 

 The wettest month was June, when 5"98 inches of rain fell. 

 The dryest month was September, when only 0*72 inches of rain fell. 

 July 26. — The blight of the potatoes first noticed this year, at Chcswick, on 

 this day. It made little progress until the wet weather set in. The crop 

 was half destroyed. 

 On the 27th November, the Aurora Borealis appeared in great splendour for 

 several hours, viz., from 8 until 11 p.m. 



There were, in 1848, dry days, - - - 207 



(Rain or snow) wet days, - - - - 159 



And 27'93 inches of rain fell during the year. 



In 1847 the mean temperature was 44°. 



Rain, 24*20 inches. 

 Dry days, - - - 283 days. 

 Rain or snow, - - 82 days. 



JOHN S. DONALDSON SELBY. 



