SCIENTIFIC NEWS. 



and exert, no action, ft nee one of the fluids attracts a magnetic 

 particle with the fame force as that with which the other re- 

 pels it. 



When the fluids are feparated, they tend to unite and neu- 

 tralize each other ; and they would actually unite, were there 

 not a coercive force that oppofed this union. This force may 

 he either the adhefion of the molecules of the fluid to the fteel, 

 or the friction which they undergo in paffing from one point to 

 another. 



The author has proved, Memoires de VAcademie des Sciences 

 pour 1787, page 491, that whether we fuppofe the two fluids 

 to be feparated and carried each to one extremity of the blade, 

 or that they are only difplaced in each particle of the fteel, 

 the refult of the calculation will be the fame. He has proved 

 at the fame time, that this latter fuppoiition is the only one 

 which can be made to agree with the facts. 



In the prefent memoir the author endeavours to determine 

 the magnetic Hate of feveral blades united fucceffively one 

 above the other ; or, which amounts to the fame thing, he 

 endeavours to determine the powers of different blades rela^. 

 tive to their thicknefs. 



New Planet, 

 New planet be- Mr. Piazzi, of the Univerfity of Palermo, difcovered on 

 T^ e - t n cr Ma " and the lft of January, 1801, a ftar which appears to be a new 

 planet. By observations repeated for feveral fucceeding days 

 he concluded, that its orbit is not likely to be parabolic, but 

 agrees beft with the hypothecs of a circle, the radius of which 

 appears to be 2,6362 of the earth's mean diftance, and con- 

 fequently its position will be between Mars and Jupiter. Its 

 bulk appears to be about ly that of the earth, He has afligned 

 to it the name of Ceres Ferddnandia, being the names of the 

 ancient divinity of Sicily, and of its prefent fovereign the 

 founder of the Obfervatory at Palermo, An account has been 

 lately prefented to the Royal Society. At prefent I give the 

 following particulars from a paper in German, 



OBSERVATIONS, 



