H. A. Ward — Four Nev) Aust/raliam Meteorites. 137 



the cut. The original coating of the mass has entirely disap- 

 peared, except in the larger and more prominent pittings and 

 a few small blotches on the smooth parts, where it has a 

 graphitic black, granulated appearance. The oxidized surface 

 is very thin, the metal showing clearly through it on all promi- 

 nent ridges. 



Ballinoo meteorite, £ natural size. 



The Widmanstatten figures, though well developed on etch- 

 ing, are very minute and are scarcely visible to the naked eye. 

 This iron is octahedral. The etched surface also shows numer- 

 ous sections of troilite not more than l mm thick and up to 2J- Cm 

 long, surrounded by schreibersite. On one section there is a 

 troilite nodule l crn thick entirely surrounded by a layer of what 

 seems to be graphite, averaging l mm in thickness. On the 

 same section there are also thin patches of this graphite (?) 

 from 2 to 3 mm in diameter. 



The markings on this iron are more nearly identical with 

 those of Cowra than any other iron with which I am 

 acquainted. 



Analysis of the Ballinoo Meteorite by Mariner and Ifoskins, Chicago, 111. 



Fe 89-909 



Ni 8-850 



Co -740 



P -501 



C trace 



Cu trace 



S . _ trace 



Si trace? 



100 000 

 Specific gravity 7*8 



