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H. L. Preston — San Angelo Meteorite. 



where discovered. The surface of the iron is marked on all 

 sides by large and characteristic pittings, some of them as 

 much as 12 cm in diameter. 



At one end of the meteorite several ounces had been forced 

 from the main mass, which has left a rough, jagged surface five 

 by six inches. 



San Angelo meteorite showing octahedral structure ; £ natural size. 



This is of unusual interest, as the octahedral structure of the 

 iron is beautifully shown by numerous octahedral faces, the 

 largest of which is one and a quarter inch in diameter and is 

 very sharp and clear. So also are many of the smaller octa- 

 hedral faces shown over this surface where the separation of 

 the mass was made. 



San Angelo meteorite, etched section ; about 4- natural size. 



A portion of this part taken off has been forged in a black- 

 smith shop : this piece when polished and etched has the same 



