lao Hi/lory of Ajlrcnomy for the Year 1801. 



chain, Dclambre, Chabrol, Vidal, Thulis, Fiauguerguef«, 

 Ciccollni, Due Lachapelle, JBurckhardt, Bernier, Plumboldt, 

 Quenot, and feveral calculations h}' myfelf ; with a notice of 

 the moft important works that have appeared in the courfe 

 of a vear. 



The Cphenierides of Vienna for 1802 contain a fourth 

 ferics of longitudes determined by Triefnecker, who has cal- 

 culated all the eclipfes of the fun and ftars which have been 

 obferved ; a confidcrable and important labour, which re- 

 mained to be undertaken. M. Triefnecker has given us at 

 the fame time a table of all the preceding rcfults in regard to 

 the pofition of towns where eclipfes have been obferved. 



The third volume of the Memoirs of the Inftitute, the 

 eichth volume of the Memoirs of the Italian Society, the 

 Ephemerides of Berlin for 1803 and 1804, thofe of Milan 

 for 1801, and the Journal of Baron von Zach during the 

 whole vear, have continued to furnifti interefting obferva- 

 tions and new memoirs. Baron von Zach has procured the 

 obfervations made by Liefganig at Vienna from the year 

 ^755 ^" 17745 ^"^ thofe which Niebuhr made in the Le- 

 vant in 1761, and which he did not publifti. We have re- 

 ceived the Memoirs of the Academy of Berlin for 1796 and 

 1797, and the fixth volume of the Memoirs of Turin ; but 

 they contain nothing on ailr.onomy. 



The obfervatory of Paris, having acquired new inftru- 

 ment?, has been put into ailivity by Mechain and Bouvard ; 

 and the Board of Longitude intends to print the obfervations 

 of 1801 in the fame form as thofe of Greenwich. 



Caroche having finiftied the telefcope of 22 feet, Tremel 

 is employed in conltruttin^ a ftand to fupportitj and the 

 platfonn on which it is to oe placed is already in a Hate of 

 g;rcat forwardnefs. On all occafions we have enjoyed the 

 happinefs of having for miniftcr a man long celebrated by 

 his attachment to the fclences, and who, in order to be 

 nfeful to them, wanted only that influence of which he is 

 fo worthy. 



The trannt telefcope which .Tofeph Delifle had, in 1748, 

 erected at the hotel de Ciugny, and with which I as well as 

 Meffier made mv tirft obfervations, had become almoft ufelefs 

 by ruil. The Board of Longitude wifhed that it (hould be' 

 reconllroftf d with platina, and our colleague Mcffier will 

 have new affiltance for his ufcfid obfervations. 



Lenoir has fliown at Paris, during the public exhibition 

 of the year 9, that the French induftry is not inferior to the 

 Enolifli ; he received from government one of the tvi-elve 

 cold medals diftributcd to the moft meritorious of our artifts. 



The 



