1902.) 
fall ufelefs, notwithftanding the great 
number of excellent inftruments contained 
in if. ; 
Citizen Henry has had the fatisfaction 
of putting in order Bird’s grand mural 
inftrument, and of making fome obferva- 
tions with it. 
The want of regularity in the degrees 
_of the earth, according to. the prefent 
meafures, led to a fufpicion, that there 
was an error in that of Lapland, taken 
in 1736. M. Melanderhielm has obtain- 
ed for the King of Sweden a new mea- 
fure. In the month of April M. M. 
Ofwerbom and Swamberg fet out for 
Tornea. They ereéted fignals, and built 
{mall obfervatories. As foon as theriver 
fhall be frozen, they will meafure the bafe 
by rules fent out by the Inftitute: a mul- 
tiplying circle made at’ Paris by Citizen 
Lenoir will ferve in the fpring to meafure 
the angles, and we fhall have, next f{um- 
mer, a folution of this difficulty. 
M. de Mendoza, a Spanifh officer, has 
publifhed two large collections of tables ; 
one at Madrid in the year 1800, Coleccion 
de Tablas; and one at London, in the 
month of April, 1801, in which are ta- 
bles for the reduétion of diftances. by the 
addition of five natural numbers: he has 
made a new ufe of verfed fines, by which 
numerical operations are rendered fhorter 
and eafier. Thefe Tables confift of four 
hundred and feven pages in quarto. 
Mr. Garrard, in England, has alfo 
publified Tables in thirteen pages only, 
but his method his neither fo fhort, nor fo 
accurate. 
Mr. Vince, an able Englifhaftronomer, 
has publifhed the fecond volume of A 
Large Treatife on Aftronomy. 
The Stereotype Tables of Logarithms, 
which were publifhed by Firmin and Didot 
in 1795, have been recently correéted. 
M. Vega, who has printed in Germany 
the largeft colleétion that we have, has 
examined the French tables, and has difco- 
vered and fent an account of many errors, 
which we are going to correét.. Thefe 
will probably be the laft, and then we may 
reckon upon a fet of faultlefs tables, 
which will be of great advantage to per- 
fons engaged in calculations, and who 
fometimes lofe whole mornings in 1te- 
peating operations which do not agree, 
0) account of an error ina fingle figure. 
But as {mall and portable tables are 
fonnd very ufeful to moft perfons, I am 
_ printing fome in the ftereotype ; many peo-— 
ple are engaged in correcting them, andI 
fhall be able, in three months, to give to all 
pexfons converfant with figures, the mo 
The Hiftory of Aftranomy, by C. Laland:. 023 
accurate, convenient, and elegant edition 
that has been yet feen. phi y 
Citizen Verniquet has finifhed an en- 
graving of his grand plan of Paris, in 
feventy-two fheets, ona fcale of half a 
line toa French toife, The accuracy of this 
work very much furpafles every thing of 
the kind. 
It is long fince, that attempts have been 
made to conftrué a lunar globe, which 
fhould reprefent all the mountains and vol- 
canoes on its furface. Mr. Ruffel, of 
London, has accomplifhed this object. 
His lunar globe is well finifhed, and ex- 
prefles all the circumftances attending the 
moon’s libration; it exhibits it to us, as 
it would appear in the different pofitions 
of the earth and moon, as -well as the 
variations of the equator and orbit. 
Mw Philippides, born at Mount Pelion, 
in Theflaly, who ftudied aftronomy at a 
French college in 1794, and who is now 
in Moldavia, propofes to publifh in the 
Greek language my Abrégé d’ Affronomie. 
He has already publifhed different works, 
with a defire of propagating knowledge in | 
his own country... ! 
The two laft ‘volumes of Montucla’s 
Fivfioire des Mathematiques are three- 
fourths finifhed. In thefe will be found 
the hiftory of aftronomy, of optics, and of 
navigation ; to which I have been obliged 
to add a great deal, on account of the 
premature death of the Learned Hif- 
torian. 
M. de Murr, at Nuremberg, who is 
in poffeffion of the manufcripts that be- 
longed to Regiomontanus, the firtt refiorer 
of the {cience of aftronomy before the year 
1500, has had a page engraved exactly 
conformable to the character of the manu-~ . 
fcript: he offers te part with them for two 
thoufand four hundred francs, Thefe 
would be a great treafure to a large li- 
brary. 
Tie Aftronomical Poems of Ricard,: 
Lemiere, Fontanes, have fhewn how well 
adapted a view of the heavens is to ex- 
cite poetical raptures. Citizen Gudin has 
alfo given a Poem to the world, which 
contains both a hiftory of aftronomy, and 
a defcription of the heavens, with as much 
elegance as accuracy. 
Geography has likewife made fome pro- 
grefs this year. Tranchot has conftru¢ted 
a map of four departments united, onthe 
{cale of a line to one hundred toifes : they 
include the country between the Adige, 
and the Adda, Piedmont, Suabia, and 
Switzerland. The Minifter of War has 
given the details in the Moniteur of the 
14th of Auguit, 
Ge2 
g Citizen 
