1800. ] Climate of- Nort 
exactnefs ; fince even with refpect tofome 
of the planets, Mars for example, theory 
may yet deviate from obfervation about 
one minute. My deviations in determin- 
ing the path of this comet lie all with the 
bounds of obfervation, and may therefare 
with equal juftice be laid to the account 
of the obfervations as of the theory. That 
the path which I have calculated approaches 
very nearly to reality, is proved likewile by 
the circumitance that’ the differences be- 
tween the really obierved places of the 
comet and thofe obtained by calculation, 
efpecially in the lateft obfervations in Oc- 
tober, are fometimes pofitive, and at other 
-times negative, as will appear from the 
comparative ftatement. The true elements 
of the comet, then, are 
iy Seca 
Longitude of the afcending node 3. 9 27 19 
Inclination of the orbit. foueis7/e eto) 
Longitude of the perihelium Q41°3, 13.9750 







For the Monthly Magazine. 
REMARKS 0” various CAUSES, 
jeem to affect the CLIMATE 9f NORTH 
which 
AMERICA, 7 thofe level Countries, 
ewhich are lefs influenced by Frofi, than 
GeocentricLon-| Geocentric 

1799 Medium  |gitudeoftheCo-|Lat. North,| Inthe { , In the 
Parifian Time|met,bycalculati.|byCalculati.|Longitude.| Latitude. 
h. ‘ Lage’ Vs ° ’ 4 ° ¢ “ ! ” 
AU Gita ko 3413 13 54 98120 14 Ti+ 0 gcl—" 9 
Sse 40 13 ta gos 4021 25°! 231 "ks ° 
eto AO ee, tS 2722 a Sle Ee St 
Saas Ce a 5 a Tigo Ae 62 OO SS SO 
Sa Re eo A SOR es eek BO Ae OS e Ise NG 
aa Ea aint) 0,20 92520" FO $i+ rr qo fo) 
Tom sO 1s AG. 49 £27 «48 tsi 0. 37/4 
oo ema was ZO BA (828 40 YAgTs ON col © 
———— erie MO 40.15 29° 6 3113 26° 29)-F «t *ari— 76 
GZ a seige 2a! 7) Sals2 (28) 2a 1 BIG 
ee mM GN SO RR. me 4133. 39 ‘421+ 11 44;— Oo 
ta ee) Ae 5. 3 ao) 25IAO 29 20 Oe SIae 
Sepee gqle 92 GOS ONG MOS: s 2 Tibor asl 
ama eT se SO S152. 58 43iy 1 BO 
a mage EO 10) 2g ah Bb aS, < 52) TO Oo levies) £ 
eee Cu 8 aS S045 St Bat ow AAI e 
Ot. TN ST ae Poe yh Re ReleO, FFs) Balen Th Balms 
SG 6G. a7 OG SY Q2l2T 6h 23\-—. O. 2ol—— 9 
ao P60) 3a 42513 19 34) 96l65 40. 23)-4--. © 25)45:.0 

h America. 
12t 
Shortefediftance fromthe fun 0,8401782 
Logarithm thereof ~ 999243715 
Logarithm of the datly mean 
motion : 4 hosoras7a8 
Time of the perihelium . 1799, Sept. 7, 
at sh..43' 25% 
medium time 
of Paris. 
Motion . ,° retrograde x 
To prove the accuracy of thefe elements, 
I calculated mzmeteen geocentric places of 
this comet, and compared them with thofe 
obferved. Among them is the firft and the 
Jaft obfervation of the 6th of Aucuft, and 
of the 15th of O&tober, which include the 
whole arc of the obferved path of this 
erratic ftar, The differences in the 
fifth column of the following table muft, 
according to their refpective figns, beadded 
to, or fubtracted from, “the calculated 
places, to obtain thofe obferved. 

DIFFERENCES 








fluence the climate of that continent: I 
did not deem it pertinent to involve wholly 
the caufe of agriculture, by confidering 
in the fame paper, what various effects 
are produced by froft, which have a ten- 
the more mountainous Farts ; by Col. _dency to ameliorate the foil. 
TaTHAM. 
It feems proper to notice other and 
N the firft part of thefe remarks (in- 
_ ferted in the laft Month’s Magazine), 
I have endeavoured to take a view of {uch 
phenomena of froft as occurred to me in 
North America, in hopes to obtain fome 
degree of information concerning the 
means whereby it may be fuppofed to in- 
of man. 
various caufes which feem to affect the 
climate of the low and level countries in 
the fouthern parts of the United States ; 
and which have a tendency to enervate the 
human frame, and to fap the conftitution 
Indeed, in the latter view, it is 
fome- 

