SCIENTIFIC NEWS. 



75 



ISO?* and obtained from 100 parts, silex SO, iron 27, sul- 

 phur 7, magnesia 10, nickel 1, leaving a loss of 5. Some 

 specimens of it, carried to France by col. Gibbs, were 

 exau.ined by Mr. Gillet-Laumont, who gives the following 

 account of them. 



'* They contained rounded globules, ferruginous and Contained 

 brittle, of a bbickish gray, and acquiring a dull metallic ^fi'ile iron, 

 aspect on being rubbed with a smooth file. They wer^ not 

 very abundant, and appeared to be slightly attracted by the 

 magnet. 



'* Small portions of malleable iron were diffused very malleable iroti, 

 plentifully through the stones. They were of irregular 

 shapes, and very unequal in size; some black, but most of 

 a shining silvery white; and easily cut with a steel instru- 

 ment, like those contained in most aerolites. I separated a 

 small, flat, triangular piece, about a quarter of an inch 

 long, which 1 heated to different degrees, and afterward 

 plunged into cold water, but could not make it harder. 



•* On the face of one of the stones were some particles of 

 mica; but as I could find none interiorly, I suppose they 

 came from the ground on which it fell. 



*' Another of the specimens contained embedded in it a and a lamellar 

 portion of a small body of the size of a pea^ of a whitish *"^«tance» 

 gray colour, composed of smooth, shining lamellar facets, 

 forming angles too small to be measured. It resembled a 

 piece of broken feldspar. On endeavouring to detach a 

 piece for the purpose of assaying it, the small mass imme- 

 diately separated, leaving a cavity, which showed, that it 

 was rounded before it was moulded in the stone. A parti- 

 cle of a very similar substance still exists in the stone; and 

 there are some yellowish particles in the cavity from which 

 this lamellar substance was taken. 



" This substance scratched German sheet glass. It did Described, 

 not effervesce with nitric acid. Heated before the blow- 

 pipe it was immediately covered with a black enamel, which 

 trgnsuded in small globules, but the mass did not 

 melt. I should have examined it farther, but I let it fall, 

 and could not again find it. 



" The aerolite of Weston therefore contained a substance, Neithercar- 



which was neither carbonate of iime nor feldspar, and I be- 'donate of iims 



*^ ' nor feldspar, 



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