IT have said that this question of the wind’s progress does not 
mean towards what point does the wind blow most frequently. 
If we arrange the observations under the heads north, south, east 
and west, so that when an observation falls, for example, be- 
tween north and west, it shall be counted in each of those col- 
umns, we obtain the aninge result of the number of scmniceed 
tions for the three years. 
urs. 
w. 
1492 
0 
s. E, 
9 | 593 
N. s. 3 = Ww. N. a = w. 
Ralgal gel 096 | s15 | 278 | 706 
It appears then that at 9 A. M. the wind has blown most fre- 
quently from a southern quarter, and at 3 P. M. from a northern, 
but that on the whole the -wind has blown at 221 observations 
more from the south than the north; ,and if we take these num- 
bers to represent the relative progress of the wind in the direc- 
tion of the four cardinal aia: we shall have the wind’s mean 
direction S. 76° 11/ Ww. eee 
The preceding results. will ¢ el 02 ble us to appreciate various 
statements and conclusions which have recently been published. 
Thus in the New York Regents’ Report for 1840, Mr. Coffin has 
deduced the mean direction of the wind for the state of New 
York from twelve years’ observations at the different academies, 
S. 76° 54’ W., a result almost identical with my own given 
above ; and irietonl of being surprised at this, we ought rather to 
~ have been surprised if the case had been otherwise; for Hudson 
is situated near the highest point of an immense territory, which 
is nearly a plane surface. For more than a thousand miles to the 
west of us, there is not an eminence.materially higher than this 
station. No spot then could perhaps’ be selected more entirely 
free from local influence than this, while the academies of New 
York being scattered over a surface exceedingly diversified, are 
subjected many of them to strong local influences, which, how- 
ever, are mostly neutralized in taking the mean of observations 
at fifty different stations. ‘The New York academies are nearly 
in the same latitude with Hudson, and the winds are observed 
twice a day, A. M. and P. M. at hours not stated, but probably 
hot differing much from my own. The above direction, how- 
ever, (S..76° 54’ W.) denotes merely the point from which the 
Wind most frequently blows, and the Hudson observations afford 
reason to believe that throughout the entire pee of New York 
Vol. x1a, No. 2.—July-Sept: 1941. 41 
