152 TENTH ANNUAL REPORT 0¥ 



cess of oxydation that lias made several fissures in tlie mass, so as to 

 allow portions to be detached by the hammer, although when the 

 metal is sound the smallest fragment could not be thus separated, it 

 being both hard and tough. Its dimensions are such that it will just 

 lie in a box 13 inches long, 11 inches broad, and 5^ inches deep. 



The exterior is covered with oxyd of iron, in some places so thin as 

 hardly to conceal the metal, in other places a quarter of an inch deep. 

 Its hardness is so great that it is almost impossible to detach portions 

 by means of a saw. Its color is white, owing to the large amount of 

 nickel present ; and a polished surface when acted on by hot nitric acid 

 displays in a most beautifully regular manner the Widmannstiittian 

 figures. The specific gravity of three fragments selected for their 

 compactness and purity, was from 7.88 to 7.91. 



The following minerals have been found to constitute this meteorite : 

 1st. Nickeliferoics iron, foTrniug nearly 'the entire mass. 2d. Proto- 

 sulpJmret of iron, found in no inconsiderable quantity on several parts 

 of the exterior of the mass. 3d. Schreibersite, found more or less 

 mixed with the pyrites and in the crevices of the iron, in pieces from 

 the thickness of the blade of a penknife to that of the minutest par- 

 ticles. 4th. Olivine ; two or three very small pieces of this mineral 

 have been found in the interior of the iron. 5th. Protochlorid of 

 iron : this mineral has been found in this meteorite in the solid state, 

 which I believe is the first observation of this fact ; it was found in a 

 crevice that had been opened by a sledge hammer, and i^ii the same 

 crevice Schreibersite was found. Chloride of iron is also found deli- 

 quescing on the surface ; some portions of which, however, are entirely 

 free from it, while others again are covered with an abundance of rust 

 arising from its decomposition. 



Besides the. above minerals, two others were found — one a silicious 

 mineral, the other in minute rounded black particles ; both, however, 

 were in too small quantity for anything like a correct idea to be formed 

 of their composition. 



The analyses of the metallic portion furnished in two specimens 

 were as follows : 



No. 1. No. 2. 



Iron ; 82.39 83.02 



Nickel 15.02 14.62 



Cobalt .43 50 



Copper 09 06 



Phosphorus 16 19 



Chlorine 02 



Sulphur 08 



Silica 46 84 



Magnesia 24 



98.55 99.57 



Tin and arsenic were looked for, but neither of those substances 

 were detected. 



The composition of the nickeliferous iron corresponds to five atoms 

 of iron and one of nickel. 



