HisforTj of Astronoiny for ilis Year 1S05. 125 



Second volume, and afterwards the comparison of the old 

 meridian. The basis of Rode:? is bad : 22 toises have been 

 added at the degree between Perpignan and Rodez, which 

 departs from the progression. It is not the attraction of 

 mountains, but the base which is the cause of it ; even the 

 angles upon that base were bad. 



M. Bouvard has finished the printing of his new tables 

 of Jupiter and Saturn. I have completed those of Mercury 

 and Venus, which are ready for printing. M. Delamljie 

 has finished those of the first satellite with the new pertur- 

 bations. 



M. Firmin Didot has furnished, as a specimen of French 

 industry, a table of sines calculated to seconds, which are 

 carried one place further than those of Taylor. M. de Prony 

 w\\\ publish the prospectus, and M. Didot has added to it a 

 page in folio for the natural sines to 22 plac>;?. for the ten 

 thousandths. 



M. Barry, at Manheim, announces a collection of ob- 

 servations. He placed a distant mark for his meridian 

 glass. 



At the end of July a report was circulated that M. de 

 Zach had quitted the observatory of Gotha, which he had 

 rendered so celebrated ; but as it was he who obtained its 

 construction, astronomy v.ill always have the advantage of 

 his zeal, his influence, and his labours. His journal has 

 been continued : we have seen in it, among other things^ 

 the position of Eisenberg, at present remarkable as being 

 the residence of the learned duchess dowager of Gotha, 50'' 

 58' 3" latitude, and 3l' 29" east from Paris. We there 

 see also the diminution of the Baltic Sea of 45 inches in 

 the century, and the supposition of the junction of Asia 

 with America, from the voyages of the Russians, &c. 



At Paris, on the 31st of October, the ])yramid of Mont 

 Rouge was finished ; it is iiitended to serve as a mark for 

 the meridian glass : the trees around it are cut down. 



The Bureau of Longitude has induced the minister to re- 

 establish the observatory of the College of France, which 

 has been important on account of the nimiber of excellent 

 navigators and astronomers its professor has for these thirty 



vcais 



