METEORITES 419 



tbe average contents in nickle at 10,30 per cent. The relative quantity 

 of jihospliorus is, in nearly all, higher than the above. On the other 

 hand, most of the iron-meteorites contain traces of other substances 

 mentioned before. 



From the absence of other constituents, the meteoric iron discovered 

 in Wisconsin is the purest which has been hitherto found; it is distin- 

 guished for its beauty, and only one other meteoric iron mass now known 

 shares in an equal degree the characteristic of its species. 



