METEORITES OF NORTH AMERICA. 477 



I obtained chrome oxide 0.33 per cent, indicating 0.50 of chrome iron, if the chrome be present in that form. There 

 is no way, however, by which I can decide this question, although it is probable, since the chrome is in the insoluble 

 part; the oxide of nickel, with the exception of perhaps a minute portion, belongs to the composition of the soluble 

 silicates. 



The nickeliferous iron contained in this stone is very small in quantity. This on analysis gave 



Iron 88.51 



Nickel 10.21 



Cobalt.. 0.60 



99.32 



Mineral constituent* of the Warrenton meteorite. A microscopic examination did not give me any clear indications, 

 for it is not possible to prepare a good section for observation. Its chemical examination, however, shows the usual 

 uni and bisilicatea of the olivine and bronzite and pyroxenic types. The most marked feature is the preponderance 

 of the olivine minerals, constituting four-fifths of the mag The proportion of the mineral constituents is about as 

 follows: 



Olivine minerals 76. 00 



Bronzite and pyroxene minerals 18. 00 



Nickeliferous iron .*. 2. 00 



Troilite 3. 50 



Chrome iron : 0. 50 



Meunier 3 gives two figures illustrating the structure of the meteorite and remarks:' 



The Warrenton meteorite so much resembles that of Ornans, which fell July 11, 1868, as to indicate that the two 

 were detached from the same mass. It is very friable, which explains its division into fragments at the time of 

 striking the earth. 



Brezina, 4 in 1885, classed the meteorite with Ornans as a spherical chondrite and remarked: 



The chondri are so numerous that they quite crowd out the groundmass. The two stones (Ornans and Warren- 

 ton) are very similar, have a blue-gray color, and a thick dull cruet. 



In 1895, 5 he gave the date of sunrise on the day of fall of the meteorite (January 3, 1877) 

 as 7.19 a. m. 



The distribution of 1,614 grams of the meteorite is listed by Wulfing'; the whereabouts of 

 the remainder do not appear. 



BIBLIOGRAPHY. 



1. 1877: SMITH. Note of the recent fall of three meteoric stones in Indiana, Missouri, and Kentucky. No. 2. On 



January 3, 1877, at sunrise, in Warren County, Missouri. Amer. Joum. Sci., 3d ser., vol. 13, p. 243. 



2. 1877: SMITH. A description of the Rochester, Warrenton, and Cynthiana meteoric stones, which fell, respec- 



tively, December 21, 1876, January 3, 1877, and January 23, 1877, with some remarks on the previous falls of 

 meteorites in the same regions. 2. Warrenton (Missouri) meteorite. Amer. Joum. Sci., 3d ser., vol. 14, pp. 

 222-224 (analysis) and 227-229. 



3. 1884: MEUNIER. Meteorites, pp. 280, 283 (illustration), 284-285, 494, and 523-524. 



4. 1885: BREZINA. Wiener Sammlung, pp. 190-191 and 233. 



5. 1895: BREZINA. Wiener Sammlung, p. 259. 



6. 1897: WULFING. Die Meteoriten in Sammlungen, p. 381. 



Washington. See Farmington. 

 Washington County, 1858. See Trenton. 



Waterloo. See Seneca Falls. 

 Wayne County, 1858. See Wooster. 

 Wayne County, 1883. See Jennies Creek. 



WEAVER. 



Weaver Mountains, near Wickenburg, Maricopa County, Arizona. 



Latitude 33 58' N., longitude 112 35' W. 



Iron. Ataxite, Dba (Klein). 



Found 1898. 



Weight, 38.8 kgs. (85.5 Ibs.). 



