164 



BULLETIN 94, UNITED STATES NATIONAL MUSEUM. 



The composition of the strictly metallic portion is given as: 



Per cent. 



Iron (Fe) 89.89 



Nickel (Ni) 9.58 



Cobalt (Co) .49 



Copper (Cu) .04 



100. 00 



The mineralogical composition as given by the authorities 

 quoted is: 



Subsequent^ investigations by Cohen yielded results as below: 



Per cent. 



Iron (Fe) 84.60 



Nickel (Ni) 9.24 



Cobalt (Co) .95 



Copper (Cu) .02 



Chroraiiini (Cr) .02 



Carbon (C) .04 



Sulphur (S) .01 



(Ce)= .04 



Phosphorus (P) . .17 



Silica (SiO,) 1. 70 



Magnesia (MgO) .51 



Olivine residue 3. 39 



100. 75 

 The olivine yielded: 



Silica (SiOi) 44.91 



Ferrous oxide (FeO) 2. US 



Lime (CaO) 1.33 



Magnesia (MgO) 5L 44 



99.7a 

 Specific gravity, according to Shepard, 6.66; to Smith, 6.52, 6.91, 

 and 7.13; Brush, 7.29. 



The mass is not a homogeneous iron, as it appears on casual in- 

 spection, but contains many minute, sometimes microscopic inclos- 

 ures of olivine, as indicated in the analyses given above. No Wid- 

 manstatten figures are brought out by etching, as is common in 



1 Festschrift zu der 50 jiihrigen Doctor-Jubelfeier d. Ilerrn H. LiBJpricht, Greifswald, 

 1900, pp. 27-73. Abstract in Neues Jahrbuch, 1901, No. 2, p, 37. 

 * Probably a tjpographical error and should be CI. 



