Page:Blackwood's Magazine volume 002.djvu/745
This page has been proofread, but needs to be validated.
1818.]
Register.-Meteorological Report.
721
Meteorological Table, extracted from the Register kept on the Banks of the Tay, four miles east from Perth, Latitud 56° 25', Elevation 185 feet.
February 1818.
Means.
| THERMOMETER. | Degrees. |
| Mean of greatest daily heat, | 40.1 |
| . . . . . . . . . . . . cold, | 30.8 |
| . . . temperature, 10 A.M. | 35.8 |
| . . . . . . . . . . 10 P. M. | 34.4 |
| . . . of daily extremes, | 35.4 |
| . . . . 10 A.M. and 10 P.M. | 35.1 |
| . . . . 4 daily observations, | 35.2 |
| Whole range of thermometer, | 260.0 |
| Mean daily ditto, | 9.3 |
| . . . temperature of spring water, | 38.0 |
| BAROMETER. | Inches. |
| Mean of 10 A.M. (temp. of mer. 39°) | 29.401 |
| . . . . . 10 P.M. (temp. of mer. 39) | 29.363 |
| . . . . . both, (temp. of mer. 39) | 29.382 |
| Whole range of barometer, | 7.716 |
| Mean daily ditto, | .275 |
| HYGROMETER (LESLIE'S.) | Degrees |
| Mean dryness, 10 A.M. | 7.9 |
| . . . . . . . . 10 P.M. | 6.1 |
| . . . . . . . . of both, | 7.0 |
| . . . . point of deposition 10 A.M. | 30.1 |
| . . . . . . . . . . . . . . 10 P.M. | 29.8 |
| . . . . . . . . . . . . . . of both, | 29.9 |
| Rain in inches, | 1.219 |
| Evaporation in ditto, | .650 |
| Mean daily Evaporation, | .023 |
| WILSON'S HYGROMETER | |
| Mean dryness, 10 A.M. | 17.2 |
| . . . . . . . . 10 P.M. | 15.1 |
Extremes.
| THERMOMETER. | Degrees. | |
| Maximum, | 18th day, | 50.0 |
| Minimum, | 4th, | 16.5 |
| Lowest maximum, | 4th, | 26.0 |
| Highest minimum, | 17th, | 42.0 |
| Highest, 10 A.M. | 18th, | 46.0 |
| Lowest ditto, | 4th, | 21.0 |
| Highest, 10 P.M. | 18th, | 44.0 |
| Lowest ditto | 4th, | 18.0 |
| Greatest range in 24 hours, | 25th, | 16.0 |
| Least ditto, | 12th, | 5.5 |
| BAROMETER. | Inches. | |
| Highest, 10 A.M. | 11th, | 30.050 |
| Lowest ditto, | 1st, | 28.632 |
| Highest, 10 P.M. | 11th, | 29.962 |
| Lowest ditto, | 1st, | 28.640 |
| Greatest range in 24 hours, | 20th, | .750 |
| Least ditto, | 6th, | .055 |
| HYGROMETER. | Degrees. | |
| Highest, 10 A.M. | 26th, | 22.0 |
| Lowest ditto, | 4th, | 0.0 |
| Highest, 10 P.M. | 23d, | 20.0 |
| Lowest ditto, | 4th, | 0.0 |
| Highest P. of D. 10 A.M. | 18th, | 43.0 |
| Lowest ditto, | 5th, | 17.0 |
| Highest P. of D. 10 P.M. | 17th, | 41.0 |
| Lowest ditto, | 4th, | 18.0 |
| WILSON'S HYGROMETER. | ||
| Greatest dryness, | 26th, 10 A.M. | 38.0 |
| Least ditto, | 16th, 10 P.M. | 4.0 |
Fair days 16; rainy days 12. Wind west of meridian 23; East of meridian 5.
Meteorological Table, extracted from the Register kept at Edinburgh, in the Observatory, Calton-hill.
N.B.―The Observations are made twice every day, at eight o'clock in the morning, and eight o'clock in the evening.
| Ther. | Barom. | Attach. Ther. |
Wind. | ||
|---|---|---|---|---|---|
| Feb. 1 | M. 33 E. 32 |
28.425 .493 |
M. 35 E.35 |
Cbe. | Snow morn. frost all day. |
| 2 | M. 28 E. 25 |
.570 .667 |
M. 31 E. 31 |
Cble. | Clear frost. |
| 3 | M. 24 E. 27 |
.801 .857 |
M. 29 E. 31 |
Cble. | Snow morn. frost all day. |
| 4 | M. 26 E. 25 |
.877 .877 |
M. 32 E. 34 |
Cble. | Clear frost. |
| 5 | M. 29 E. 32 |
29.103 .340 |
M. 30 E. 32 |
Cble. | Cloud. frost. |
| 6 | M. 32 E. 36 |
.620 .425 |
M. 32 E. 36 |
W. | Cloud. frost. |
| 7 | M. 37 E. 39 |
.639 .409 |
M. 36 E. 38 |
W. | Fresh, rain afternoon. |
| 8 | M. 38 E. 39 |
.466 .631 |
M. 38 E. 39 |
W. | Clear and cold. |
| 9 | M. 37 E. 38 |
.464 .670 |
M. 39 E. 40 |
S.W. | Clear, mild. |
| 10 | M. 38 E. 42 |
.657 .703 |
M. 39 E. 42 |
S.W. | Cloudy. |
| 11 | M. 37 E. 38 |
.894 .850 |
M. 40 E. 40 |
N.W. | Frost, clear. |
| 12 | M. 40 E. 42 |
.717 .618 |
M. 41 E. 43 |
S.W. | Cloudy. |
| 13 | M. 40 E. 38 |
.650 .588 |
M. 42 E. 41 |
W. | Cloudy. |
| 14 | M. 32 E. 53 |
.492 .428 |
M. 37 E. 38 |
Cble. | Clear frost. |
| Ther. | Barom. | Attach. Ther. |
Wind. | ||
|---|---|---|---|---|---|
| Feb. 15 | M. 25 E. 36 |
29.643 .643 |
M. 38 E. 39 |
S.E. | Frost morn. mild fore. |
| 16 | M. 29 E. 42 |
.506 .428 |
M. 34 E. 40 |
Cble. | Cloud. frost, rain even. |
| 17 | M. 40 E. 46 |
.599 .468 |
M. 40 E. 45 |
S.W. | Cloudy, mild. |
| 18 | M. 47 E. 48 |
.304 .209 |
M. 47 E. 47 |
S.W. | Cloudy, mild rain even. |
| 19 | M. 44 E. 38 |
.429 .465 |
M. 45 E. 42 |
W. | Rain fore. fair after. |
| 20 | M. 35 E. 36 |
.519 .394 |
M. 40 E. 39 |
W. | Fair, frost. snow even. |
| 21 | M. 41 E. 33 |
28.825 .755 |
M. 40 E. 37 |
S.W. | Stormy, rain, snow, sleet. |
| 22 | M. 34 E. 32 |
.806 .892 |
M. 40 E. 37 |
S.W. | Frost. |
| 23 | M. 35 E. 37 |
29.213 28.907 |
M. 37 E. 39 |
Cble. | Stormy, fros sleet, rain. |
| 24 | M. 32 E. 36 |
.925 .812 |
M. 35 E. 39 |
N.W. | Wind high, frost. |
| 25 | M. 43 E. 39 |
.792 .995 |
M. 43 E. 42 |
N.W. | Ditto, rain and sleet. |
| 26 | M. 34 E. 32 |
29.154 .250 |
M. 38 E. 37 |
N.W. | Clear frost. |
| 27 | M. 35 E. 37 |
28.853 .894 |
M. 37 E. 38 |
N.W. | Frost, snow &c. |
| 29 | M. 36 E. 39 |
29.140 28.541 |
M. 37 E. 40 |
Cble. | Frost morn rain after. |
Rain .8 inches.