226 ANALYSIS OF SOME AEROLITES. 



rain nor wind was noticed ; and no one felt any of that un« 

 easiness or oppression, that indicates electricity. 

 Thestonejde- These aerolites, like all others, were of a mixed sub- 

 stance. They are of a light ashen gray colour, fine grained, 

 traversed in all directions by little veins, and interspersed 

 with little disseminated globules. Their specific gravity is 

 3'56. Brought near a compass, they cause the needle to 

 move through an arc of 8*. When reduced to powder, 

 globules may be extracted from it by the magnet. 



Analysis of the aerolite o/Lissa, by Mr. Klaproth. 

 Analysis of Though all the external characters of this stone of Lissa 



e stone. ^^^ ^^ ^^^^ presumption, that it must contain the same sub- 

 stances as those, which chemical analysis has demonstrated 

 in other meteoric stones ; yet the subject is too interesting-, 

 to allow us to neglect an accurate examination of every fresh 

 specimen, for the purpose of discovering how or in what 

 proportions it may diifer from those already analysed. 

 Mr. Reuss having sent me a sufficient quantity of ^his 

 1^ stone, I subjected it to the following analysis. 



ilVon extracted a. 200 grains were reduced to powder ; and from these 

 y t c magnet. ^^ ^^.^ ^^^^ extracted by the magnet. These were in small 

 ramified particles. The remaining powder still contained 

 some small shining metallic points, which might be consi- 

 dered as sulphuret of iron, as sulphuretted hidrogengasw^s 

 obtained from it on treating it with muriatic acid. 

 The metal dis h. The 29 grs of metal were dissolved in muriatic acid by 

 rLlc a'dd?^"' *^^^ assistance of a gentle heat. Sulphuretted hidrogen was 

 evolved, and the liquid at first appeared foul and milky. 

 ' Five grains of the powder of the stone, that had adhered to 



the globules of the iron, remained undissolved. The acid 

 liquor had not the emerald green colour, that the solution 

 of meteoric iron commonly has; but was simply greenish, 

 which indicated but a small portion of nickel. In order to 

 oxide the iron completely, I added nitric ^cid to the boiling 

 liquor, precipitated the oxide of iron by ammonia, and fil- 

 tered. The ammoniacal liquor was of a pale blue colour. 

 On evaporating it to drynegs, and heating it red hot in a pk- 

 tina crucible, a little yellowish gray residuum was left. 

 This residuum, dissolved in nitric aeid, formed a green 



liquor^ 



