'J. S. NATIONAL MUSEUM 



PROCEEDINGS, VOL. 61, ART. 4 PL. 



X. 



•^^'^ 



I. The Signal Mountain, Lower California, 



OCTAHEDRITE. MAGNIFIED 2h DIAMETERS: SHOW- 

 ING IN THE Upper LEFT Secondary GRANULATION. 



2. The Alpine, Texas, Ataxite. Polished Surface Magnified about 

 4 Diameters. 



