162 BULLETIN 94, UNITED STATES NATIONAL MUSEUM. 



The strictly metallic portion yielded: 



Per cent. 



Iron (Fe) 88.74 



Nickel (Ni) 10.68 



Cobalt (Co) .58 



100. 00 

 From these analyses the proportional mineral composition is cal- 

 culated as: 



Per cent. 



Nickeliferoiis iron 2. 23 



Troilite 5. 03 



Sol. inHCl (mainly olivine) 39.84 



Insol. in HCl (mainly enstatite with a little chromite 



and feldspar) 52.42 



99.52 

 Structure indistinctly chondritic, firm, and compact; iron scarcely 

 visible to the naked eye. Wiilfing suggests that this may belong to 

 the same fall as the Bluff, Fayette County, stone. The general ap- 

 pearance, color, relative portion of the constituents, and chemical 

 composition are, however, all against this. 

 Gift of R. T. Hill. 



Reference. — L. G. Eakins, A new stone meteorite. Amer. Journ. 

 Sci., vol. 39, 1890, pp. 59-61. 



TRENTON, WASHINGTON COUNTY, WISCONSIN. No. 65. 



Iron, Om. Weight 327 grams. Section 8.3 by 7 by 1.5 cm. etched 

 and showing WidmanstJitten figures and large troilite nodule. Date 

 of fall unknow^n; found in 1858. Originally six masses weighing 65 

 kilograms, four being found in 1858, one in 1869, and one in 1871. 

 Chemical composition as given by J. Lawrence Smith : 



Per cent. 



Iron (Fe) 91.03 



Nickel (Ni) 7.20 



Cobalt (Co) .53 



Phosphorus (P) .14 



Copper (Cii) Trace. 



Insol. residue .45 



99.35 

 The iron is octahedral in structure, but shows on an etched surface 



peculiar rectangular markings to which Smith proposed to give the 



name Lajyhamite. 

 References. — J. L, Smith, Amer. Journ. Sci., vol. 47, 1869, p. 271. 



I. A. Lapham, Amer. Journ. Sci., vol. 3, 1872, p. 69. 



TBENZANO, LOMBARDY, ITALY. No. 327. 



Stone, Cca. Fragment weighing 163 grams, from one of two stones 

 weighing 882,459 grams, which fell on November 12, 1856. The 

 mineral composition as quoted by Buchner is : 



