76 ALLISON — ON METEOROLOGT. 



mishaps could to a great extent be anticipated, b}- signals giving 

 the probable coming weather. 



I now propose to take up 1867, month by month ; ahvays 

 mindful that in this country where our stock of statistics is as 

 yet so scanty, our first care should be to add to the mass, so as 

 to form a foundation for future calculations. 



January Avas on the whole a fine month, but we had some heavy 

 snow storms, and an extraordinary depth fell notably on the 6th, 

 17-18th, 21-22d and 26th. I measured after the diflerent falls 

 an aggregate of 40 1-4 inches, which is more than twice the 

 usual depth as I have noted it either here or in Windsor, in any 

 other January. The steady cold preserved the snow, and the 

 sleighing, which was at least tolerable on every day in the 

 mouth, can only be equalled by 1866, when it was even better. 

 But 6 hours rain fell in Jaimary, viz., on the forenoon of the 

 22nd. The mean temperature 19°. 10 was 3°. 22 below the cor- 

 rected mean of the 5 years from 1863 inclusive, and it is worth 

 remarking that of these five, each succeeding Jauuary has been 

 colder than the one immediately preceding it. The range of 

 temperature was very limited and the maximum but 37". The 

 minimum being 9°. 3 below 0. N.W. wind, as usual prevailed, 

 but the mean force, was excessive, rising twice to a gale, and 

 frequently blowing very strongly, generally with (or just after) 

 snow. The temperature fell Ijelow () four times ; but the- 

 mouth was more remarkable for continued than extreme cold. 



February was very free from cloud, more so even than 1866, 

 which was clearer than ordinary. The latter part of the month 

 was particularly fine, and steadily cold after the 17th, which 

 brought down the mean temperature considerably, the weather 

 having been mild from 1st to that date. The mean 25°. 11 varied 

 little from that of 1863-67 inclusive, which is 24^.24. Both the 

 maximum, 53°. 1 and minimum 2*^.4 were high, making the 

 range of temperature much as usual. A great deal of rain fell 

 on 10 different days, while snow was very delicient ; the total 

 being 3 1-2 inches. I notice that in 18(56 there was a like want 

 of snow in February. Tlic prevailing Avind, N.W., though 

 frequent in February is generally surpassed by S.W. The 



