On the Meteors of 13th November. 401 
Review of the foregoing Facts. 
1. The change of weather which took place about the time the me- 
teors appeared, was very remarkable both for its amount and for the 
extent of country which it pervaded. Some additional facts bave 
come to our knowledge since those mentioned on page 385, were put 
to press, which give much interest to this head. Such are the fol- 
lowing. 
The change of temperature at Mobile, Alabama, (Lat. 30° 40’, 
Lon. 88° 11’,) is thus described in a communication from Alexan- 
der Jones, M. D. addressed to Professor Silliman. 
“For several days before, the weather had been unusually warn 
for. the season, the wind prevailing from the S.S.W. On the 11th, 
a shower of rain fell; on the 12th, the wind changed to N.W. The 
thermometer, for several days previous to the night or morning of the 
13th, stood as high as 80° F. On that night it fell down to about 
40°. or two weeks afterwards, we had the severest spell of eon- 
tinued cold vee ever experienced i in Mobile, at the same season 
of the year.” — 
The reduction of temperature extended as far westward as Nateh- 
itoches in Louisiana, (Lat. 32°, Lon. 93°,) as we learn from Dr. 
Leavenworth of the U. S. Army, who is stationed near that place. 
He says “ the night, although not cold, was much cooler than the 
preceding ones had been.” 
It appears however by a communication from Mr. 4. Mallory 
addressed to Professor Silliman, that the change of weather was hard- 
ly perceptible at Matanzas in the Island of Cuba, although the me- 
teoric appearances were much the same there as here. Mr. Mallory 
observes that “there was nothing singular in the appearance of the 
atmosphere either before or after the 13th, the thermometer ranging 
from 77° to 84° on the 12th, and from 75° to 82° on the 13th, 
with a pleasant sea breeze and a clear sky. The barometer at sun 
rise stood at 29.90.” — 
But for the most remarkable statements on this head, we are in- 
debted to Mr. Twining, (see p. 399.) It appears that about the 
time under review, there was, in a certain part of the Atlantic Ocean, 
between the latitudes of 40° and 50° N., and the longitudes of 30° 
and 50° W., a violent gale of wind. ‘The conclusion of Mr. Twi- 
ning, that ie reason why no meteors were seen eastward of the 
fiftieth degree of west longitude, was because the sky was obscur- 
ed, is strengthened by the fact, that a little westward of this limit, 
Vou. XXV.—No. 2. 5k 
