354 
free from all faults, has been corrected on 
the plates, and there is reafon to think 
that they approach very near to perfec- 
tion. 
We wanted alfo fmall portable tables, 
and thefe C. Didot has undertaken. I 
have begun an edition of Logarithms car- 
ried to fix decimal places, like thofe given 
by myfelf and Lacaille in 1760, which 
were publifhed by Marie in 1768, and 
reprinted four times afterwards, but full 
with more faults than the firft time. 
We at length, however, have a permanent 
edition, which it will not be neceffary to 
reprint every ten years with more errors 
than thofe before difcovered.’ 
M. Bogdanich,.affiftant at the obferva- 
tory of Buda, has made, in feveral cities 
of Croatia, obfervations of great impor- 
tance to geography. , 
The Geographical Ephemerides of M. 
Won Zach, which appear every month, 
have continued to eftablifh a valuable cor- 
re(pondence between the aftronomers of 
Germany and thofe of the reft of Europe ; 
but this work feems to have done more 
by procuring to aftronomers new amateurs 
and new affiitants in regard to cbfervations 
and calculations; fuch as Colonel Le 
Coq, of Minden, in Pruffia; M. Felgen- 
hauer, at Reichenbach, near Schweidaitz, 
where he has eftablifhed an obfervatory 
furnifhed with excellent inftruments; M. 
Behrnauer, at Budiffin or Bautzen, in 
Lufatia; M. Grillo, at Wettin, in the 
duchy of Magieburg; agd M. Gaufs, 
at Brunf{wick, a young man who fhews 
great tafte and zeal for aftronomy, and 
who has made ufeful calculations. 
‘In Ruffia, two officers of the navy have 
been fent to determine the pofition of va- 
ricus points on the White and Frozen 
Seasy ‘The Prefident of the Academy, Ba- 
ron de Nicolay, a German from Strafburg, 
-and a poet, feems to be interefted in this 
undertaking. 
The beautiful infiruments of Megnie, 
among which are an azimuth quadrant, 
have been purchafed by C. Lubbert, of 
Hamburg, and he has givenme fome hopes 
that he will eftablifh-an obfervatory, where 
they may be rendered ufeful. The Se- 
nate of Hamburg having refolved to caufle 
a correét map of its territory to be made, 
M. Horner has fet out from Gotha, 
where he laboured in the obfervatory, and 
has gone to Hamburgh. 
The Duke of Gotha has purchafed new 
inftruments for his beautiful obfervatory ;- 
and M. Von Zach continues the printing 
of a valuable work, in two volumes, quar« 
Hiftory of Aftranamy for 1799, by Lalande. 
{ May ft 
to, on the ftars, which will foon ap- 
pear. 2 
In the Batavian Republic, C. Calkoen. 
has gone to take poffeffion of the obferva- 
tory of Leyden, and has left that of Am- 
fierdam to C. Keyfer ; but we have re- 
ceived no obfervatiens except from C. 
Dutenhove at Utrecht. The laft menti- 
oned aftronomer has caufed to be printed 
the Cofmologic Letters of Lambert, tran- 
flated by C. Darquier. : 
A grand tele{cope of twenty-five feet 
has been conftruéted by Dr. Herfchel for: ' 
Spain; it cofis 175,000 francs, (above 
7oool. fterling); but there js no obferva= 
tory at Madrid; that of Buen-retiro is, 
not yet finifhed. The minifter, Florida 
Blanca, had much at heart.a mufeum and. 
obfervatory, but the architect finifhed nei- 
ther of them. When the war broke out, 
the minifter was difmiffed, and aftronomy, - 
in Spain has remained in its former ftate 
of torpor. There is fo little money in - 
that country, that it is dificult to find 
enough to defray the fmalleft expences. 
But the Minifter Durquijo feems to be 
much difpofed in favour of aftronomy, 
and, in the mean time, has enabled M. 
Chaix to make ufeful obfervations. I 
- have thanked him in the name of aftro- 
nomy, and he returned fuch an anfwer as 
increafes my hopes. 
M. Chaixhas been charged in Spain with 
a calculation on meafures ; and we have 
fent him from Paris an account of what 
was done by Borda, Méchain, and Caffini, 
in regard to the meafure of the pendulum, 
which in 1792 was found to be 36 inches 
8 lines 60 at 10 deg. which is the mean 
heat at Paris. ‘This fuppofes the pendu- 
Jum in vacuo reduced .to very finall 
arcs. A 
We learn from the Jena Journal that 
the firft volume of the Memoirs of the 
Academy of Lifbon was publithed in 17973 
it begins at 1780. It contains obferva- 
tions made at Lifbon by M. Cuttodio 
Gomes de Villafboas, and M. Ciera; by 
M. Ceruti at Carthagena, and by M. © 
Dorta and Barbofa at Rio-Janeiro; mes — 
teorological obfervations made at Rie- 
Janeiro; obfervations of the fatellites,~ 
made at Mafra; an eloge of d’Alem- © 
bert, by M. Stockler ; but this eloge has” 
excited perfecution againft the author, 
in a country where the anti-philofophical 
tribunal ftill calls itfelf the Holy Inquifi- 
tion. 
An able arti# at Florence, named Gori, 
has divided, with great ingenuity, 2 qus- 
drant belonging te the obfervatory of ig 
Ximentqy 
j é 
