1809. ] . Meteorological Reports. 533 
the weicht of the ftorm was at a diftance, the thunder not very loud, but like a continual 
tumbling, and unaccompanied with hail. At a fimilar diftance, on the fouth fide of Londen, 
the hail did much damage to iky-iights, green-houfes, confervatories, &c. &c. The huil- 
itunes were not only very large, but they appeared in fome places rather like pieces of ice, 
broken from a large fheet, in its fell from the clouds, than as regularly-formed hail-fones., 
Since the 19th, the atmolphere has been cool, approaching rather to cold; but on the day 
previoully to that, the thermometer ftood at 77°, since which it has not been higher than 
6%°, and once or twice, the greateft heat in the day was 62%. Still the average heat of the 
month is about 56°, which is 14° higher than it was for April, but 7° or 8° lefs than it 
was for the month of May, 1808. ‘Phe wind had been variable, but in the eafterly points fulf 
half the month. The average height of the barometer is reckoned at 29.56. 
The average temperature taken at Shide, Ifle of Wight, for the month.of April, is 455.566: 
it muft be remarked, that the obfervations were made every day at half-patt eight, A.M. 
which perhaps gives fcarcely the average heat of the 24 hours. Inthe neighbourhood of 
Londen, we know, from accurate obfervations in feveral places, that the average heat of 
the day may be taken without error at nine, or from that to half-patt nine in the morning. 
The quantity of rain falien at Shide, meafured, by a rain-gauge, fimilarly conftru&edto that 
which we ufe, is, trom November 5, 1808, to March 31, 1809, twenty-two inches ; and for 
the month of April, it is five inches. 
ASTRONOMICAL ANTICIPATIONS. 
The new moon will fall this month on the morning of the 13th, at 42 minutes pat three ; 
and the full moon, at 7 minutes paft three in the afternoon of the 27th. For the firtt fort¢- 
night, mercury may be feen in the evenings, if the weather be favorable. On the 1st, he 
felts at two mimates patt ten (night), on the 4th at eight minutes paft ten; on the 7th, at ten 
milintes pait teu; on the 10th, at eight minutes paft ten; on the 13th at three minutes paft 
ten; end on the 16th, at fifty-five minutes paft nine. On the 5th, this planet will come 
into conjunction with the e¢, in the conftellation of the twins, a ftar of the third magnitude ; 
on which day the ftan will be only 55 minutes of a degree to the north; and on the 12th, 
he will be in conjunction with the 3, in the fame conftellation ; and another ftar of the third 
magnitude, when the pianet will be 12 23’ tothe north. The beautiful planet, Venus, is 
now a tworning-ftar, and will continue fuch till the 15th of March, 1810. For the firft week 
the will hardly be vifible to the naked eye, on account of her proximity to the fun; but ia 
the after-part of the month, fhe will make a fplendid appearance every fine morning, to- 
wards the north-eaft, ‘Vhroughout the month the will increafe in luftre; and her telefcopic 
appezrance will be very imtereiting. On the 29tb and 30th, her brightuefs will be equal to 
what it was in the evenings about the middle of April laft. Mars will be fill an evening - 
ftar. He will not fet till after midnight. Jupiter wiil be up in the mornings, from two to 
three hours before fun-rife. On the if, he comes into conjunétion with the 2, a ftar of the 
fourth magnitude, in the conftellation of the fifhes, when the difference of latitude will be 
538 minutes, the planet being to the fouth. On the morning of the 15th, at 6m. 4s. pet 
two, the third fatellite of Jupiter may be feen to emerge out of its primary’s fhadow ; and on 
the morning of the 24th, at 30m. 18s. paft two, will take place a vifible immerfion of Ju- 
piter’s tecond fatellite. Saturn will be put up in the evenings, and part of the mornings, 
of the prefent month, throughout which, his apparent motion will be retrograde, from v9¥ 
48', to 27° 58’, of the anaftrous fign fcorpio. ‘lhe Georgium Sidus, as well as Saturn, may 
be feen for a great part of the mght. From the noon of the 1ft inftant, to the noon of 
July 1, this planet’s place in the zodiac, will have moved from 6° 19’, to 5° 38’, of the 
fign feorpio, the apparent motion being retrograde. On the evening of the 21st, at 56 
minutes paft our nine, the fun will touch the tropic of Cancer, which is his utmoft limit: 
northward. ‘lhe folar declination, north of the equator, will then be 23° Pee eth eae 
which quantity is equal to the obliquity of the ecliptic at thattime. For the entertainment 
of ourreaders, we fubjoin the following table of the fun’s rifing and fetting, at London, for 
a few days before and after the fummer folftice ; carefully calculated to feconds, the la- 
tutude being stated at 519 3”. 
ce li et a a le 
June. Sun rises. Sun sets. 
17 abe AS G5 8h. 16m. 35s. 
18 S 45 a4 8 16 ~ 46 
19 soe Me aise Sea Oh 6s as 
80 3 45 5 8 16 58 
91 3 43 of 8 1% 0 
92 Bh ME in @ Bie aan ao 
98 3+ 43 3 Sy 26°. .54 
DE SY 4s 8 8 16 47 
95 5 43 Ase SH LS VG 
9§ S OF 8 16 95 
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