SCIENTIFIC NEWS. 303 



fent, free of poftage, to the academy. The prizes will be Prize tjueftions. 



declared in the kit public filling (Meffidor) of the fame 



year. 



The fociety of emulation of Colmar in its fitting of the 

 1 7 ill Thermidor, propoied the following i abject for a prize 

 'of 300 francs, to be decreed in the public fitting of Meffidor, 

 in the year XIII. 



" 1. What are the readieft and leaft expenfrve means of 

 converting into animal oil, fuch remains of animals as have 

 been hitherto loft to the arts and to. confumplion i 



(t 2. To what arts, and to what kinds of fabrication can 

 this product be applied; and what preparations mould this 

 fubftance undergo before it is brought inlo commerce ? 



" 3. Finally, in an extenfive undertaking, the object of 

 which would be to convert the remains of animals into animal 

 oil, what precautions would be neceffary in the adminiftrative 

 police, to prevent the public health from being injured?" 



The memoirs are to be written in French, German, or 

 Latin, and fent before the 13th Meffidor, free of poftage, to 

 the Prefect of the Department, or to the Secretary of the 

 Society. 



Extract of a Letter from Mr. J. Dalton, Le&urer at the 

 Royal Infiitution. Dated, Manchefter, March 12, 1805. 

 A VERT remarkable and fingular appearance of the Remarkable 

 aurora borealis was obferved at Manchefter from 10 to 11 in aurwa **•*•■ 

 the evening of Saturday the 23rd of February. The fky 

 was almoft completely obfcured with dark clouds, efpecially to 

 the Couth, with fome rain; about 60° above (he horizon, on 

 the fouth meridian, there was a fpace in which the cloud was 

 lefs denle, where a very ftriking vacillating flame arretted 

 the attention of moft people who happened to be out. It 

 fornetimes (hone with fuch yividnefs as to exhibit a ftream of 

 light right down to the horizon through the thickeft part of 

 the cloud; and at other times, the whole fouthern region 

 was illuminated as with a flam of lightning. The light 

 feemed fcarcely to reach the zenilh, and at breaks in the 

 clouds to the north, no light appeared. Should this phenome- 

 non have been obferved in the fouth of England or in France, 

 a comparison of the observations may lead us to form fome 

 idea of the height of this and other appearances of this meleor, 

 which occur much more rarely of late years than formerly. 



To 



