398 ALLISON ON METEOROLOGY. 



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early and again in afternoon with thunder and lightning, and fog and 

 drizzle in evening. Wind veered through S.W. to W. during day. 



The mean pressure of atmosphere in October rose farther above 

 the normal, and was 29.965. The month was mild — more mild 

 than May, to which its normal temperature closely approximates. 

 On the morning of the 3rd, the first hoar frost of this autumn 

 appeared, and on the 18th the temperature of air first fell to 32^. 

 The prevalent wind returned to N. W., but with little velocity. 

 Though quiet, the month was very wet ; and the great rain fall of 

 8.63 inches was measured, being 3.20 inches above the mean fall, 

 and 3. 75 inches over the preceding October. Not a flake of snow 

 fell this month. We had not one gale, which is unusual, though 

 the same was remarked in 1872. Auroras, four. Fogs, four. 

 Hoar frosts, six. And once lightning was seen, with the heavy 

 rain of the 5th night. 



In ISTovember the mean pressure declined greatly, falling to 

 29.718 ; which is, however, very nearly the average. Temperature 

 also decreased to a remarkable extent, resulting in a very cold 

 month. The mean was 33.°32, 4°. 08 below the average. N. W. 

 winds, as usual, prevailed ; but not with a great velocity generally. 

 Rain continued to fall in large quantities with 5 . 8 inches of snow ; 

 giving a total precipitation nearly equal to last month, and almost 

 50 per cent above the normal fall of November. One aurora, and 

 seven hoar frosts, but no fog was recorded. Four times the wind 

 rose to a gale, viz : 8 / 9, when heavy rain fell nearly all the former 

 day and in showers in evening. Snow and rain and a S. gale at 

 midnight, which veered S. S. W. and was at its height at 1 a. of 

 9th, and then fell early. On 13th when it blew from S. W. to W. 

 S. W. in the morning, after snow, followed by heavy rain the pre- 

 vious day, with wind from S. E. to S. W. On 18th gale began 

 from E. N. E. at 3 a., and continued through E. to S. E. till noon 

 of 19th. On first day rain fell from 2 a. to noon, and on second 

 snow began at 4 p., quickly turning to rain, which continued till 

 midnight, when wind was very light from S. W. The fourth gale 

 blew from 10 p. of 24th till 5 a. of 25th from E. S. E. to S. S. E. 

 Snow beginning on afternoon, turning to rain at night, and ceas- 

 ing at 6 a. 



