FALLEN ON THE EARTH. 26\ 



in the metallic ftate : they may eafily be made vifible, by 

 patting a file over the cruft, as they then become evident, on 

 account of their metallic luftre. This is more particularly the 

 cafe with refpecl to the cruft of thofe ftones which remain to 

 be mentioned, they being much more rich in iron than that I 

 have juft defcribed; a circumftanee I think it needlefs to re- 

 peat, in the following defcriptions of them. The ftone now 

 treated of, does not, when breathed upon, emit an argillaceous 

 fmell: the fame remark may be applied to all the others. 

 The fpecific gravity of this ftone is 3352. 



STONE FROM YORKSHIRE, 

 This ftone, the conftituent parts of which are exactly the Stone from 

 fame as thofe of the ftones from Benares, differs from them, compofed'like 

 however, the former; 



Firft. In having a finer grain. but . of finer 



t> o grain: 



Secondly. That the fubftance defcribed as being in the form The globules are 

 of fmall globular or elliptical bodies, is not fo conftantly in thofe lefs re S ular : 

 forms, but is alfo found in particles of an irregular fhape; a 

 circumftanee that is not met with in the other ftones: thefe 

 bodies are likewife, in general, of a fmaller fize. 



Thirdly. The proportion of martial pyrites, which has pre- The pyrites in 

 cifely the fame characters as that in the ftones from Benares, ^ th^ meuUic 

 is lefs; on the contrary, that of the iron in a metallic ftate, is iron more, 

 much greater. The quantity I was able to feparate by means 

 of the magnet, appeared to me to compofe about eight or nine 

 parts, in one hundred, of the weight of the whole mafs. I 

 obfervedmany pieces of this iron, of a pretty considerable fize; 

 one of them, taken from a portion of the ftone I had powdered, 

 in order to feparate the iron, weighed feveral grains. 



The part of the ftone which is in an earthy ftate, and which Its earthy part h 

 ferves to connect the other parts together, has rather more 

 conftftence than that of the preceding ftones; and its appear- 

 ance does not differ much from that of decompofed felfpar or 

 kaolin. The ftone itfelf, therefore, although by no means hard, 

 is rather more difficult to break with the fingers. 



The fpecific gravity of this ftone is 3508. It is denfer. 



STONE FROM ITALY. 



This ftone was in a perfectly entire ftate; confequently, its Stone from Italy, 

 whole furface was covered over with a black cruft peculiar to 



all - 



