circumference light red, pale yellow, and green. Similar colours were perceived in a small corona, 34° in diameter, immediately around the moon. Paraselena.-At the sides of this halo, two Paraselena appeared alternately between seven and eight o'clock; they were of the same altitude as the moon, and distant from the centre of her disc 22° 30', thus making the halo 45° in diameter: sometimes they were faint and irregularly shaped; at other times more compact and circular, displaying the prismatic colours as in the halo, in order next to the moon. The first Paraselenæ appeared a few minutes after seven, at the edge of the halo to the right of the moon, in the eastern point, just under Aldebaran, and did not disappear entirely till near eight. The second made its appearance at half-past seven, on the left edge of the halo, diametrically opposite to the first, and was most splendid at eight, when the moon's altitude was 2240. When attenuated Cirrostrati passed over her disc, the Paraselena lost the beauty of their prismatic colours, and resembled a small portion of the galaxy seen through a clear atmosphere, but resumed them when these low vapourous clouds had cleared the halo. In addition to these mock-moons, two well-defined curved rays of light projected from the top of the halo at a quarter before eight, and drew in repeatedly and gradually like the horns of a snail: at that time the top part of the halo became very luminous, tending to produce another Paraselenæ, by the intersection of these refracted and projecting rays. A representation of those curved luminous projections from the upper part of a circle may be made with part of a glass of water and a lighted candle, placed on a table-cloth, by giving the incident ray of light from the candle to the furthest edge of the water, an angle of from 40° to 45°; and they may be drawn in gradually by enlarging the angle of incidence, or by moving the candle slowly towards the glass, which should be a semicircular rummer. Two-fifths of an inch of rain fell in the early part of the morning. 17.-At a quarter before nine, p. m. a meteor of the same size as that described on the 13th moved in a northerly direction. 19.-Several small meteors shot in different directions in the evening, and small corona surrounded the planets Venus, Jupiter, and Saturn, and the star Capella, in consequence of lofty haze. 25.-At nine, a. m. the trees dripped with dew, which, in the course of the night, amounted to 175 th of an inch. The sun rose and set with a well-defined coloured halo, 44° in diameter; and in the course of the day several faint Parhelia appeared at its extreme edge. Cirri also appeared, and the intermediate modifications of clouds down to Nimbi, with rain in the night, followed by a rainy day. The amount of rain here since Aug. 31, is 104 inches; the quantity evaporated from an evaporator exposed to the sun and wind is 7th inches. ARTICLE V. Results of a Meteorological Journal, kept at the Observatory of the Academy, Gosport, in 1818. By W. Burney, LL D. Lat. 50° 47′ 58′′ North. Long. 1° 6' 4" West of Greenwich. In time, 4' 24.3". Inch. Inch. Inches. Inch. Inch. Inch Inch. Inch. Inch. Jan. 30.48 28.92 29-833 1.56 12.78 0.76 36 29.83 29.83 29-84 54° 25 40-80° 29-0° 17° 40-29° 46-64° 41-970 940460 480 78.30 72.90 76.20 75.80 Feb. 30 18 28-87 29-720 1-31 8.04 0.97 30 36 28 50 29-653 30-34 29-18 29-705 25 29-72 29-71 29-71 54 23 36.50 31.0 22 36-28 45.35 37-60 96 48 48 80.2 70.1 81.1 77.1 1.86 12-44 1.00 1.16 30 29.64 29.66 29-67 58 30 41.72 7.15 0.88 28.0 30-34 29 38 29-871 0.96 3.83 0.33 21 29-71 29-70 29-70 64 31 49.40 20 29.86 29.87 29-87 78 40 33.0 56 10 38.0 .... 30-35 29.70 30-070 0.65 3.75 0.33 24 30-07 30-07 30-06 82 48 64.60 34.0 .... 30-30 29 85 30-077 0.45 3.28 0.37 30-60 28.50 29.881 12.59 73 60 1.00 271129.87 29.87 29-88 91 23 52.79 32.8 22 42-29 50-74 41-74 24 48 57 56.23 46.73 82 55-52 64.55 53.32 30 64.97 73:30 62.07 25 68.00 75.6866-42 32 63.39 72.35 62.61 24 58-07 65.93 58.10 54.03 61.0354.87 50 93 55.43 51.53 39.32 44-45 40-29 8251.80 59-30 51-42 100 29 48 69.3 61.6 69.7 66.8 85 39 46 90 35 55 56-3 100 46 5471.3 90 50 40 75.0 93 59 35 809 97 59 38 78.6 58.3 56.3 ANNUAL RESULTS. Barometer. Inches. Greatest atmospheric pressure, Dec. 29. Wind N.E... 30-600 Least ditto, March 4. Wind S.W. ... 28.500 Extreme range of the mercury 2.100 Annual mean atmospheric pressure on the barometer Ditto at 8 a. m..... Ditto at 2 p.m. 29.878 29.878 Ditto at 8 P. m. Greatest range of the mercury, in March Least range of ditto, in July and August. Greatest variation in 24 hours, in March. Least ditto, in August 29.880 1.860 0.450 1.000 0.250 Spaces described by the rising and falling of the mercury 73.600 Number of changes, caused by the variations in the weight of the atmospheric column Greatest variation in 24 hours, in May and August...... 32.00 De Luc's Whalebone Hygrometer. Degrees. Greatest humidity of the atmosphere, Sept. 5. Wind S.W. 100.0 Greatest dryness of ditto, June 8. Wind E. ... Annual mean state of the hygrometer at 9 a. m. 29.0 From W. to N.W. JJUNE Days. 25 62 al fase no m'q" good sing IИ bas Clouds, agreeably to the Nomenclature. sound at Tademoted edt .. Days on which these clouds have appeared, and some of them frequently by night Cirrus... Cirrocumulus Cirrostratus. Stratus. Cumulus Cumulostratus. Nimbus. A transparent azure atmosphere without any cloud dw.b204 Sun, moon, and clouds, without rain.botssopora ydiinsupligi An overcast sky without rain Fog. .386 alq ono adxowuatani .929dt „dłoď6! Rain, hail, snow, and sleet.......wodowaedo.adt.to qol0lt Anthelia, or mock-suns, nearomen 26 189 aid opposite to Parhelia, or mock-suns, of va Paraselena, or mock-moons, of ditto 18 ibba various pri 1199 Solar halos, of ditto Lunar halos, of ditto. Solar rainbows (perfect) of ditto Small meteors, commonly, but improperly, called shooting a starsamioty webw bin duge ent mea yaad virzona "a sid· ssh col Lightning, days on which it occurredigiad serrave adr canno Thunder, ditto idos ou inwone ek' insem 'Inuunt'sdr' woled 'demi'LE' 1897 tasl asw ti nedt 198 Evaporation V viurement to ens ' vd 1990 rave and tie ir as bas doni ns to adhe Greatest quantity, in June..... hoodwoddgjeo aidt, vi bev1990 Least quantity, in January..setavored for to. At 50 310-50 Total quantity evaporated in the years, bus. muunsuum.adt 4980 |