274 Prof. Encke on the Elements of the Planet Ceres. 



Prof. Gauss had the kindness to communicate to me the fol- 

 lowinff observations : 



For the opposition of 1829, I received the following excel- 

 lent observations from Professors Schwerdt at Speyer and 



o 



Argelander at Abo, which are the more creditable as at the 

 time of that opposition it was difficult to find this planet : 



The computations of the perturbations, taken in the same 

 sense as above, gave the following corrections of the elements : 



From whicli we obtain llie following comjiaiison 



IS'z'. 



