158 BULLETIN 94, UNITED STATES NATIONAL MUSEUM. 



Nothing known regarding fall. A compact, distinctly chondritic 

 stone belonging to class of veined chondrites. Mineral composition, 

 olivine and pyroxenes with small areas of maskelynite and the 

 usual metallic and sulphide particles. No chemical analyses have 

 been made. 



Reference. — G. P. Merrill, Smithsonian Misc. Coll., vol. 52, 1909, 

 p. 473. 



THUNDA, WINDORAH, ttUEENSLAND, AXTSTRALIA. No. 466. 



Iron, Om. Slice about 45 by 45 mm., weighing 118 grams, from 

 a mass weighing about 9,287 grams, found in 1886. Cohen gives the 

 composition as follows: 



Per cent. 



Iron (Fe) 91.54 



Nickel (Ni) 8.49 



Cobalt (Co) .56 



Copper (Cu) .02 



Sulphur (S) .02 



Phosphorus (P) .17 



Chromite . 01 



100.81 



From this he calculated the mineral composition to be as follows: 



Per cent. 

 Nickel-iron 98. 85 



Schreibersite 1. 09 



Troilite . 05 



Chromite . 01 



100.00 



Reference. — E, Cohen, Meteoreisen-Studien 11, Ann. k. k. Natur- 

 hist. Hofmus., vol. 15, 1900, p. 381. 



TIMOSCHIN, JXrCHNOW, SMOLENSK, RUSSIA. No. 174. 



Stone, Cc. Weight, 6.8 gr. ; fragment from interior. Fell March 

 25, 1807. Weight of original mass 40 kilograms. Fall accompanied 

 by the usual thunder-like detonations. Groundmass light ash-gray 

 with rust spots, and showing dark green to brown kugels. Metallic 

 constituents scarcely visible to the unaided eye. Analyses (I) by 

 Scheerer and (II) by Klaproth yielded: 



