280 Meteorological Observations at Hudson, Ohio. 
This result is almost identical with that of the first three years. 
The average wind at 9 a.m. is southerly; at 3 p. m. is northerly. 
- The average for both hours is northerly. Considering that each 
of the individual years furnishes nearly the same result, there 
can be little doubt that at Hudson the mean progress of the wind 
is from northwest to southeast. If any one should regard this 
conclusion as doubtful, it is probable that he would not be satisfied 
with any thing short of the record of a self-registering anemo- 
meter. I am not aware of more than two instruments of this 
kind on this continent which have been observed long enough 
to furnish important results. These are at Toronto and Phila- 
delphia.. The following is the result of the Toronto observations 
for two years. 
N. Ss. E. We 
184], 1832-6 Ibs. 747-4 Ibs. 957-2 lbs. 1741-4 lbs. w. 35° 51! w. 
1842, 2544-4 1293-3 1386:2 2697-4 21 
Sum of two years, 4377-0 2040:7 2343-4  4433:8 ny. 41° 53! w. 
~The northerly motion is here so predominant as to leave no 
doubt of the average progress of the wind. We shall look with 
interest for the publication of the Philadelphia observations. 
CLOUDS. 
The following table exhibits the progress of the clouds, each 
observation being resolved in the direction of the cardinal points. 
he table contains the sum of the observations for seven years. 
Months. | a 
ei ES pe N. . | Cours 
March, 43-4] 336 38-0) 31-7] 15-1, 110-8\w. 86° 13’ w. 
pril, 35:1] 39°9 39-6) 38:1) 10-6, -4| 89 
ay, 332| 37:3 33:3] 41-4} 15-5 115°9)s. 85 24 
June, 50-0) 49-4 40°5| 48-0} 13-1) 134-5} 86 30 
uly, 5°6| 36-1) 58:1] 466 132, 13381N. 84 31 
ugust, 64-8 45-4 60°6| 60°0| 30:2 113-2} 89 37 
September, 47:3) 36-0 42°8| 46:8] 21-6 105°3\s. 87 17 
ctober, 487) 49°38 47°4| 40-1) 88 127:2\n. 86 
ovember, 40-6 54:1 39:1) 57-0) 13-4) 125-9is. 80 
December, 40-8) 48-2 40°9| 50-4) 15-5 1276] 85 9 
nuary, 36.3) 57-8) 33°8| 63.4| 109 136° 44 
ebruary, | 83:9] 43.1) 8° 33:1] 448} 5-7 129°5|_ 84 36 __ 
The mean result derived from seven years’ observations does 
not differ half a degree from the result of the first three years. 
The following table exhibits the proportion of the different 
varieties of clouds, the number under each month being the sum 
of the observations for seven years. 
