OA, i 
Citizen Henry, who ‘was invited to 
Munich for the purpofe of confirtdting a 
map of Bavaria, writes, that the topogra- 
‘phical part is very far advanced: they 
have meafured.a bale of twenty-one thou- 
fand fix hundred and forty-nine metres, or 
eleven thoufand ene hundred andeight toifes, 
the longeft that has ever yet been taken. 
. The great triangles about the city have 
already been inclofed, the fides of which 
are from fifteen to twenty leagues in 
leagth.’ He has made feveral horizontal 
circuits, with aftonifhing precifion. ‘The 
Jait was compofed of fix angles, the fam of 
which, when added together, excecded the 
three hupdred and fixty degrees by only 
eight-tenths of a fecond, notwithftanding 
his infrument was. not very excellent. To 
fupply as much as poffibie what is warit- 
ing in perfeét accuracy, the number of 
obfervations is inereafed, always to fif- 
teen, fometimes to twenty, ~The trian- 
gles, which Citizen Cafiini took about 
the environs of Munich, were ill-chofen, 
and the meafurement of them not very 
exact. Without making ufe of his tri- 
angles, Henry has already arranged a 
feries of fourteen triangles, the meafure 
of «vhich will give an arc of the meridian 
yather larger than a degree: he-hopes he 
fhall be able to increafe this arc, which 
willthen pafs within a fmall diftance of 
Ingolftadt, by which the pofition of one 
part of Germany will be completely afcer- 
tained. The travels of M. Je Baron de 
Zach, and:many of his co-adjutors, have 
very confiderably advanced the geography 
of Germany. Colonel le Cgcq has con- 
tinved his map of Weftphalia. 
. M.le Baron de Ende: has publifhed a 
velume containing the determination of 
rany places of Lower Saxony, with obfer- 
wations and calcylations. 
. The geography of diftant countries ex- 
cites alfo new activity. Captain Baudin, 
whole yoyage,: for the purpofe of new dif- 
coveries, | have announced, left the Ca- 
nary: Tilands on. the twenty-fourth of 
November, and he fet fail from the ile of 
France on the twenty-fecond of March. 
There is reafon to hope, that he has al- 
ready mace fome interefting difcoveries in 
New Hoiland, the only part of the world 
whichis almoft unknown to us. Bernier, 
the aftrenemer, who is with him, endow- 
ed in a highdegree with underitanding and 
perfeverance, will accomplith all our ex- 
pectations. -In the month of June, the 
Frenca Government granted pail-perts to 
fome Englith fhips, viz. the lavefligator, 
Captain Flinders, which was fitting out 
for a voyage of difcovery in the Scuth 
The Eiiftory of Aftronomy, ty C. Lalande, 
FA pril i; 
Seas ; and tothe Lady Neljon, command. 
ed by Lieutenant Grant, which will ac- 
company the former, in his refearches 
along the coatt of New South Wales.” 
Citizen Deguinés, arrived from China, 
where he had been from 1784. to 1797, 
will probably afiord fome new light on 
that fine part of the world, when he fhall 
publith the journal of his voyage. 
Baron Humbeldt, a phyfician, eftimable 
for his zeal and knowledge, is gone to 
South America, where he has travelled 
one thoufand three’ hundred leagues, in 
deferts furrounded with frightful dangers, 
in order to afcertain the geography, and, 
at the fame time, the natural ‘and phyfical 
hiftory of thofe countries, which are un-= 
known to us. 
M. Deferrer has fent me obfervations 
which give the pefition of Natchez, in 
Louifiana; and of Guaira, in South 
America: the latitude of the former is 
31° 31' 48", its difference in longitude 
is 6h, 15’ 21”, and thatoof the latter is 
z0% 36’ go’ N. and 4° 37’ 11%. 
Citizen Nouet has: fent from Egypt an 
almanac calculated for that country, and 
the fituation of feveral of the cities even in 
Upper Egypt, notwithitanding the dangers 
and inconceivable fatigue to which the 
climate of the country expofes thofe who 
are engaged in operations of: this kind. 
The degree is equal to 56,880 tciles, the 
Egyptian furlong is 711 feet, the cabit 
21.33° inches; the Greek furlong is 
487.543 feet, and- the cubit 19.5017 
inches; in fhort, he has related the refult 
of his own labours, accompanied by young 
Yfaac Mechain, fon of one of our ableit 
aftronomers, who has been the companion 
and coadjutor of Nouet in Egypt. Citizen 
Fourrier has given us an account of fome 
zodaical defigns found in Upper Egypt, 
which prove the high antiquity ef the 
{cience of aftronomy, and fhew that the 
arrangement of the ftars into conftelia- 
tions goes back fourteen thoufand years, 
according to the opinion of Dupuis. 
Citizen Marquis has feat to the Board 
of Longitude the obfervations and manu- 
fcripts of P. Barlet, Jeiuity at Nancy, 
where thefe interefting writings were de- 
polited. ; 
I muft fay fomething on the fubjeé of 
meteorology. Citizen Lamarck has pubs 
lifhed an Anauaire Metcorologique, in . 
which he gives an account of a vaft num- 
ber of ‘odfervations, and indicates what 
variety in the feafons may be expected in 
the courfe of this year. The’ minifter of 
_the interior has eftablifhed a meteorological 
correspondence in order to multiply ob- 
fervationg 
