; . ! 

} " 


8e1l-'t,ueher, H. C., Profess!lr ofA&t,ronomy etc. Ep'hemeris of 
the DistaJil.ces of the four Planets Y~nus, Mars, Jupiter anel 
Saturn from the Mons Center for 1823, 1824 anel 1825. (3 Bde. 
in 2 ~dn.) 8. Copenhague 1821-i823..