Astronomy. — 2,'mc. 93 



ascent. The wind, which in the morning had a favoura'ole 

 direction, carried the aeronauts s\ ith great violence towards 

 *lie Baltic. They set out from the academy cf arts at half 

 after eight, and terminated their voyage at the mouth of the 

 Neva, at about lifty paces from the sea. When M. Ro- 

 bertson descended with his pupil, he resolved to ascend 

 alone in order to cross the gulf ; but the peasunts having 

 drawn the ropes of the balloon too stronafly to one side, the 

 netting slipped from it, and therefore it was impossible for 

 him to carry his design into execution. His imperial ma- 

 jesty was present at lUis ascent." 



ASTRONOMY. 



Talle of the right Ascension and Dedinalion of Ceres and 

 Pallas for November 1805. 



ZINC. 



In our List of Patents, page 95 of onr last volume, we 

 mentioned one granted to Messrs. Ilobson and Silvester, 

 ofSlieffield, for a method of nianuiacturine; zinc. The dis- 

 covery of these gentlemen is curious. They have found that 

 zinc, at a temperature between 210" and 30(1^ of Fahren- 

 heit, is not only very malleable, but may be passed throu'^h 

 rollers or drawn into wire. Zinc docs not return to its 

 former partial brittleness after being thus wrought, but cou- 

 J^inucs soft, fle.\ii)Ie, and extcn.sible, and may be applied to 

 nijny uses for which this metal wai before thought unfit. 



PUBK 



