oot 
; . ; 
Meteorological Journal for the year 1840. P 345 
ir. Graham Hutchinson read a paper on a method of 
| cati ig the probable mean temperature of the several winter 
, onths, from that of corresponding months in the preceding 
summer. ities 
Mr, Wm. Bald continued a series of observations made in 
_ 1839, and 1840, on the tides in the harbor of Glasgow, and the 
velocity of the Tidal Wave in the estuary of the river Clyde, 
between Glasgow and Port Glasgow. 
[The remainder is unavoidably deferred to the next number.] 
. Sy 
<< 
Arr. [X.—Abstract of a Meteorological Journal Jor the year 
1840, kept at Marietta, Ohio, Lat. 39° 25’ N., and Lon, 4° 
28’ W. of Washington City; by S. P. Hwpretn, M. D. 
| THERMOMETER. ex BAROMETER. 
o.- ee 
) E |8 | 
s ons q | 
Months. ie ee a ee Prevailing winds. Pe: 
BE eg) |e (ses gl ¢ 
=~ ls\ eels 2 /ng) a}: 
| § |#i eles 8 | s/s | Ls 
es BS ele ose nit sly a 
| ty,  |25.00/43) 4/47} 11 20, ao W., N. W, «» (29.80/28. 76 1. 
February, (41.00/74! 0/74! 15 14) 3/08} w., s. w., 8. B. _|29.75/28.88) . 
March,” |48.66/78| 16/62 12 19) 3/21) ow. N., 8. B. 29.64 28.82) . 
April, 56.57/88) 26/62) 17} 13) 4/25) s. w., N., 8. E. 29.74/29.10) 
ay, 61.80'91| 33/58) 21] 10) 5/21 8., 8. E. 29.55/28.92 
June, 68.66.89] 43/46) 19| 11) 4/25 81, 8. W. 29.68)29.10) .5 
Maly, 71.2592) 51/41| 23]. 8 QI17 8., 8. W. 29.63 )29.25 
(August, 72.43/90] 51/39] 22] 9] 5125] ss, 8. w. 29.65 29.20 
September, 57.27.82) 34/48). 20! 10) 2|00 8.5 8: E., iN, (29.75/29. 12) 
October, "52.8389! 19163! 19| 19 3192s. w., w., N. w. 29.60/29. 
Dovember, 40.60.63, 22146 14) 16 1/92, Ww. sw. | 20.70228.88) 
December, 32.1458 6152) 11] 201 1/50 Way N-We., ||| 29.75128,.85) 90 
Mean, 152.55 |2041162'39109. 
ot, _152.55  *(204/16239)09' 
Remarks on the year 1840.—The mean temperature for the 
Year is 52.35°, which varies but a small portion of a degree from - 
that of the preceding year. The amount of rain and melted snow 
is 39.09 inches, which is a few inches below the annual mean for 
us place, but is about six inches greater than that of the prece- 
ding year. The distribution has been regulated in a remarkable 
manner, so as to be most abundant in those months, where the 
heat and evaporation are the greatest, and moisture most needed 
for the growth of plants and filling out the ripening grain. The 
mean temperature for the several seasons is as follows.—N. B. The 
Winter embraces December of 1839. 
