128 BULLETIN 1)4, UNITED STATES NATIONAL MUSEUM. 



octahedral iron and iron phosphide, cemented by iron sulphide, with 

 interstitial carbon and silicates. 



References.— \N. Tassin, Proc. U. S. Nat. Mus., vol. 27, 1904, p. 955. 

 C. Klein, Sitz. preuss. Akad. Wiss., vol. 16, 1904, p. 572. 



PETERSBURG, LINCOLN COUNTY, TENNESSEE, No. 438. 



Stone, Ho. A ten-gram fragment with crust, from a stone weigh- 

 ing 1,764 grams which fell August 5, 1855. 



PIPE CREEK, BANDERA COUNTY, TEXAS. No. 205. 



Stone, Cka. Weight, 168 grams. A polished section showing 

 brown-black compact groundmass indistinctly chondritic; date of 

 fall unloiown ; found December, 1887. Weight of original mass 13.5 

 kilograms. Partial analyses by Ledoux yielded : 



Per cent. 



Metallic portion 30. 89 



Silicate portion 69. 11 



100. 00 

 The metallic portion yielded: 



Per cent. 



Iron (Fe) 90.94 



Nickel (Ni) 9.00 



99.94 



The mineral composition, so far as determined, is olivine, enstatite, 



pyrrhotite, and iron. 



Reference.— P^. R. Ledoux, Trans. New York Acad. Sci., vol. 8, 



1888-89, p. 186. 



PLYMOUTH, MARSHALL COUNTY, INDIANA. No. 203. 



Iron, Om. Weight, 182 grams. Polished slab 5.5 by 5.5 by. 0.7 cm. 

 Date of fall unknown. Found 1893 (1883?). Original weight not 

 given. Size, 12^ inches long by 7 inches thick. A larger mass found 

 in same locality in 1872 was buried and has not since been found. 

 Analysis by J. M. Davison yielded : 



Per cent. 



Iron (Fe) 88.67 



Nickel (Ni) 8.55 



Cobalt (Co) -66 



Copper (Cii) -24 



Phosphoru.s (P) !• 25 



Graphite (C) • H 



Sulpluu\(S) -07 



99.55 

 Reference.— YL. A. Ward, Amer. Journ. Sci., vol. 49, 1895, p. 53. 



