76 RoTjal Acaieray of Berlin.— ^Academy of Copenhagen. 



that it might give rise to some interresting remarks, and it 

 is probable that he will give to the public those made by 

 himself. 



The same astronomer has also been occupied with de- 

 scribing several former comets, of which an imperfect de- 

 scription has appeared. In the Im'X'rial observatory he 

 found some unpublished observations oT the comet of 1701, 

 &een at Pau by IvI. PalUi. M. Burckhardt supposes that this 

 Gomet is the &aine which was seen at sea in the month ot 

 February foilowini; ; and this circamstance, in his opinion, 

 is worthy of beiiiy; examined. 



The comet of IG^S had been supposed by some astrono- 

 ITiers It) have been the same with that of 1805. M. Bi)rck-> 

 hardt has shown by calculations, that this is not the case, 



[To be continued.] 



ROYAL ACADEMY OF SCIF.NCES AND BELLES LETTRES OF 

 BERLIN. 



This learned body has offereil medals of fifty ducats in 

 x'alue each for the best memoirs on the following subjects, 

 viz. *' A complete theory of the Hydraulic Ram, taking 

 into view the adhesion of water." 



" The determination of the object of the senate of the 

 Amphictyons, the extent of their powers, and their influence 

 over the politics of Greece." — The papers on the above 

 subjects must be given in on or before the 1st of May 1810. 



ACADEMY OP SCIENCES OF COPENHAGEN. 



The following subjects have been given out as prize ques- 

 tions for the present year. — In Matlicmatlcs. " Explain the 

 construction and theory of a hydraulic tube, by means of 

 which we may distinctly observe objects at the bottom of the 

 sea." — In Physics. " What information has been or may 

 be gained respecting the state of the atmosphere in the 

 higher regions, by means of aerial voyages?" — In History. 

 <* Compare the best and newest accounts we have of the 

 worship and religious ideas of the various Indian or 'i'artar 

 nations, and their opinions respeaing the orign and the pri- 

 anitive state of theology, and of the world, with the ideas 



which 



