Hijlory of AJlrono7ny for 1 798. 27 



of the obfen'atory conftrufted by Count Bifliop Bathyani at 

 Carlfburg or Alba Julia, called alfo Weiflenibourg and Alba 

 Carolina. 



M. Triefnecker, of Vienna, has published a confiderable 

 work on eclipfes of the fun and planets. He has calculated 

 more than 150 obferx'ations, and the tedioufnefs of fuch la- 

 bour is well known. Scarcely any thing of the kind had 

 been done in 1760, when I began to give an example of 

 thefe calculations. 



We are informed that a volume of Bradley's obfervations, 

 ii long expected, has been publifhed at London. M. de 

 JMendoza publiHied, alfo at London, in 1797, refearches in 

 regard to folving the principal problems of nautical aftro- 

 nomy, -with tables of verfed fines for every ten feconds, and 

 an auxiliary table which reduces the difcovery of the true 

 dillance to the addition of five verfed fines. 



We have received the Ephenierides of Bologna for twelve 

 years, from 1799 to 1810, by C. Mateucci, affifl^ed by C. 

 Alamanni, Guglielminj, Sacchetti, and Canterzani the fon.^ 

 Since the commencement of the prefent century, the Aca- 

 demy of Sciences always publifhed the Ephemerides for ten 

 years. The lafl: volumes are by Defplaces, Lacaille and 

 myfclf. I finiflied at the year i8co, old ftyle : the em- 

 barralfed ftate of commerce prevented me from immediately 

 finding a bookfeller, and I therefore renounced ihele cal- 

 culations. The aftronomers of Bologna, more fortunate, 

 have fupplied this deficiency; and we fliall have twelve 

 years materials to affill thofc who with to make almanack* 

 for that period. 



The Ephemerides of Milan contain the rcfult of an im- 

 portant labour of C. Oriani, on the method of correfting the 

 elements of the tables of Mercury by obfcrvation ; and many 

 intercding obfervations of C. Reggio and De Cefaris. 



M. Schrotcr, of Lilicnthal, has publiflicd the fecond vo- 

 lume of his AJlrouomical ColU-6licns, which, befides other 

 things, contains the apparent diameters of the fatellilcs: 



nine- 



