418 Meteorological Report. 
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‘beautiful species from the very magnificent collection of Mr. Swainson, at Twickenhams 
Number 100 of the same contains, 1. A dwarf variety of Dahlia piznata, from the collection 
at Holland-house. 2. Nicotiana glutinosa, a species of tobacco that has never been uncome- 
mon in our gardens since the year 1759, when it was cultivated by Philip Miller. ~ It is ex- 
tremely ditferent from the other known species, by the flowers growing in a secund racemey 
and being somewhat irregular, or subringent, and having one segment of the calyx much 
larger than the rest, far more important characters than any that are mentioned in the Repo- 
sitory. 3. Melaleuca zeriifolia, of Botanical Magazine, here called M. Salicifolia. 4. Peonia 
daurica, in many respects similar to P. peregrina, of Botanical Magazine, but leaves very 
glaucous and capsules divaricate. 5.8. Xeranthemum derbaceum. 
METEOROLOGICAL REPORT. 
Observations on the State of the Weather, from the 25th of September, to the 24th of 
October, 1807, inclusive, Two idiles N.W. of St. Paul's. 
Barometer. Thermometer. 
Highest 30.30. Oct. 19. Wind S. E. Highet 66°. Oc. 13. Wind Sag =5 
Lowest 29.38. Oct. 23. Wind S. W. Lowe 84°. Oct. 24. Wind N. W, 
Between the even- One aD oe 
5-tenths Yings of the 19th ? n the morning of the 
Create of an and 20th the mer- Bekah < 18th the mercury stood 
varlatlo : z Bey ig et 
ie bats: \ inch. cury fell from | 9 pours. j de Piel 
30.20 to 29.70. 
The quantity of rain fallen this month is equal to about 22 inchesin depth. ; 
We have heard it asserted, upon the authority of a gentleman whois said to have paid much 
and long attention to the state of the weather, that there are usually twenty-five fair days in 
October. if this were generally the case, the present month is unquestionably an excepe 
tion, as will be seen below. But in looking back upon the journal for the last few years, we 
find that our observations by no means correspond with the fact referred to. In last Octo- 
her there were twenty-two; in October, 1805, there were nineteen only; in October, 1804, 
there were only eighteen ; in October, 1803, there were twenty-two; and in the same month, 
of 1802, there were exactly twenty-five dayson which there was no falling weather. 
The average height of the barometer for the whole month is 28.5323 that of the thermo- 
meter is full 579, which is much greater than it has been for some years during the month of 
October, 52° being about the average for the last six years, though-in 1803 it was 542 ; bu€é 
in 1805 it was only 47° There have been several*heavy fogs; that on the evening of the 
5th instant, the fog was so considerable as to be productive of some accidents. The 22d was 
a completely wet day, and in the evening it was very stormy ; the quantity of rain, how- 
ever, has, upon the whole month, been below the average. The number of days without rain 
is twenty, of which very few can be denominated brilliant. ‘The wind has been chiefly in 
the West. ¢ :. 
A comet has been visible the greater part of the month in the evening. On the 24th i€ 
made a beautiful appearance between half past six and eight, after which the clouds inter= 
cepred the sight: it would not, however, set till about eleven. There seems no reason why 
?t should notbe visible some time longer to this part of the globe. On Tuesday evening, the 
6th instant, at about a quarter past eight, it was observed by Mr. Firminger, who ascertained 
its right ascension to be 15h. 16° 4”, declination 7° 23’ 25”. About seven o'clock on the 
2 ich it was observed nearly in the West, and about 40° above the hor‘zon. 
‘Lhe comet was observed on the 26th at haif past stx in the evening by a capital instrument, 
in the hands of a very able astronomer, to whom the tail appeared evidently curved, from 
which he infers it is now in the verihelion. Its elements hawe been already calculated by 
Burckhardt at Paris; of these we shall give an account hereafter. 
TO CORRESPONDENTS, 
The valuable communication from Mr. Belsham, the very interesting one from Saxony, 
and the Enquirer from the pen of Mr. Cumberland, will appear in our next. 
We are desired by W. H, to inform Giconomos that he is preparing an Jnk and Apparatus, 
which he trusts will answerthe end desired. 
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