Miscellaneous Intelligence. 135 
2. Remarks on the Winter of 1851-2 in Canada, §&c. ; by Captain 
-A., F.R.S., (from the Upper Canada Medical Journal, 
May, 1852.)—The following are extracts from the paper by Captain 
Lefroy : 
Comparison of mean winter temperatures for twenty-one years at To- 
ronto, Mr. Dade’s observations with the corrections down to 1840, 
being included. 
Taste IL. 
Nov. Dec. JAN. Fes. | Marog.| Aprit. er” of 
A.M.) Mn. /84.01.{ Mn. /84.m | Mn. /8a.m.| Mn. |8a.m Mn, |8 a.m. Mn. months, 
1880-1 2... |. veel eeelesss| es] 17-4/19-4] 194/155] 839/353 418/409] ..... 
1831-2 ...., 83°4/35-0) 12°6/14-6] 19°0)21-0) 16-7|19°8} 28-0301) 88.0|39'1] 26°60 
1832-3 ..... 34-0/35°6) 28°7/30-7 25°5/27°5 14°6)17-7 23°9\26°9) 43°7|44°8) 30°37 
1833-4 1... 30°9/32 5) 28°8/30-8| 16°4/18:4| 27-3/30-4| 30-6/32-7 oe ube 31°48 
1834-5 ...., 33°5/35°1| 23°6/25-6] 20 5/22 5] 144/17 5} 27-2/29°3! 39-0140°1] 28-32 
1835-6 ...../ 84-0/35-6 21°4|23'4) 22-0/24-0) 10°9/ 14-0] 20-2/29°3) 37-2/38°3] 26-26 
1836-7... 80°7|32°3) 23°7/25°7| 15°7\17-7| 19°5/22-6| 22-3/24-4| 87-0/38-1] 26-80 
1837-8 ...../ 85 37°83) 26°3|28°3| 25°4:27-4! 12°8/15-9| 32-2'34-3| 35-0/36-1] 29°88 
1838-9 ...., eit oT El hiss bees eee Ret PGES OR Se ae ara wr caro 
1839-40 ..... 33°0/34°6 15°0)17-0} 26°5/29-6} 32-0/34-1| 42-3/43-4] 31-28 
1840-1 ...., 840/35" 22°3/24°3| 21°8/25°1| 18-2/22-6! 24-6/27-8 38°3/39-21 29°15 
1841-2 . 34°1/35°3, 27-4/29-7| 24°7/27-5| 24:3'27-5| 35-9136-2| 41-2/43-0] 33-20 
ee aaa 814/33:1) 23-1/25-3] 26°6)2 11°3/15-0] 19°4/21-7) 39°2/41-04 27-43 
1843-4 |... 31°7/33 9°5}30°6} 18°0)19°9) 241/273} 29-3/31-7) 45°6/47°6} 31°70 
1 oe ae 8|34-8) 27:2|28°8| 25°3/26.3| 24-0|26-8| 34-3/35-9| 41-4|42-11 32:45 
1845-6 , 35°1/36-7/ 19-0|21°5| 23-9961] 167/20°8] 32°6|33-7| 43-4/43-9] 30-45 
1846-7... 39-4/40°8 24°5/27-7] 21-9/22-9) 19°7/22°5] 24-6)26-7] 39-1/39°8] 30-07 
1847-8 ..... 37-4/38°7| 28-4/30-6| 26°2'27-8| 24-0|27-0} 26-8129: 40°7)41-3] 32°42 
1848-9 .. |. oes /843),.. (29-6 18-5 20°C 3 -|89:'48 29°28 
1849-50... -../49°3),.. .|26-9] 272/991 23-1/26-4] 28-3/29°6| 36-9/38-2] 32-08 
1850-1 ,.. -+| 36°5/38°7| 20-6/22-5} 22°2/25-6| 26.5/28'3] 80 4133-1] 40°4/41-5) 31-62 
5-6 31-0 20°1|21:6| 16°7/18:4| 21-1|23°8| 25°7/27°8} 87°3|38-3] 27-10 
Mean .....|....135-7|....|263|....(934|.,..\a04 30% 41-0} 29°89 
It will be seen that the mean for the siz months compared is actually 
the lowest since ihe winter of 1836-7; and although slightly exceeded 
i severity by that winter and two earlier ones in the series, the di er- 
eNce in its favor is so trifling, both in that case, and as compared with 
the winter of 1831-2 that it might possibly disappear, if, instead of 
de cing mean tem eratures, from one observation daily, which in indi- 
vidual months leaves a liability to error to the extent of about one de- 
gree, we possessed it from observation. This remark does not apply 
6, which is said, however, to have been the most 
Severe in North America since 1779-80, and was decidedly more se- 
851-2. 
atacter, but this results chiefly from our having excluded October, 
and included ril. October 1851 was unusually warm and genial, 
having had a mean temperature of 47°-8, which is 3°3 higher than the 
Pt mah the same series of years, while April, 1852, has been one 
Coldest in it. oe) 
It is also rem rkable that the lowest mean temperature of the series 
does hot occur in any one month of the past winter, and is only ap- 
Proa by two, November and January: there was no individual 
Month in it nearly so extreme of its kind as December, 1831, January, 
. 
