Fixed Stars, as observed at Greenwich in the Year 1822. ?>9 



On comparing this list, we find that the differences of the 

 new calculation and the Kiinigsberg catalogue are both smaller 

 and more uniform, than the difference of the two Greenwich 

 catalogues compared with one another. The reason of the 

 greater regularity seems to lie partly in the more correct re- 

 ductions which are, without any trouble, obtained by Schuma- 

 cher's tables, and partly in the application of more accurate 

 corrections of the refraction caused by the state of the thermo- 

 meter ; 



