METEORITES OF NORTH AMERICA. 169 



Brezina in 18S5 7 placed the meteorite among the vein-free white chondrites, but hi 1895, 8 on 

 the ground of Reichenbach's statement that the mass was veined, changed its place to the veined 

 chondrites. 



The meteorite is distributed. Wulfing's 9 list accounts for 5,501 grams, of which Harvard 

 possesses 1,481 grams and Leyden 2,222 grams. 



BIBLIOGRAPHY. 



1. 1830: Siiximan. Tennessee Meteorite which fell near Drake's Creek, 18 miles from Nashville, Tennessee, in the 



year 1827. Amer. Journ. Sci., 1st ser., vol. 17, pp. 326-328. 



2. 1830: Silliman. Tennessee meteorite. Amer. Journ. Sci., 1st ser., vol. 18, p. 200. 



3. 1830: Silliman. Notice of the circumstances attending the fall of the Tennessee meteorites May 9, 1827. Idem, 



pp. 378-379. 



4. 1845: von Baumhauer. Ursprung, Chemische Untersuchung des am 22. Mai, 1827, in Sommer County gefallenen 



Meteorsteins. Ann. Phys. und Chem., Poggendorff, Bd. 66, pp. 465 and 49S-503. 



5. 1858-1865: von Reichenbach. No. 5, p. 475; No. 9, pp. 161, 167, 168, 169, 178; No. 18, pp. 359, 361, 363; No. 11, 



pp. 294, 300; No. 13, pp. 365, 369, 377; No. 20, p. 623; No. 25, pp. 319, 324, 428, 607. 



6. 1870: Rammelsberg. Meteoriten, pp. 103, 107, and 138. 



7. 1885: Brezina. Wiener Sammlung, pp. 177 and 232. 



8. 1895: Brezina. Wiener Sammlung, pp. 242, 244. 



9. 1S97: Wulhng. Die Meteoriten in Sammlungen, pp. 106-107. 



DUEL BULL. 



Madison County, North Carolina. 

 Here also Duell Hill and Madison. 

 Latitude 35° 32' N., longitude 82° 28' W. 

 Iron. Coarse octahedrite (Og), of Brezina. 

 Found 1873; described 1876. 

 Weight, 11 kgs. (25 lbs.). 



This meteorite, which has been at times combined with Jewell Hill, was first described by 

 Burton ' as follows : 



This meteorite was placed in my hands for examination by Prof. P. H. Bradley, who also furnished the following 

 facts in regard to its history: 



"The mass was found in August, 1873, on land of Robert Farnesworth, near Duel Hill, Madison County, North 

 Carolina. It was lying on a hillside where it had probably been used by the first settlers of the land for supporting 

 the corner of a rail fence, now rotted away. It is said to have weighed when first found about 25 pounds. Two or 

 three pounds of 'specimens' had been hammered off, most of which could not be recovered. Mr. Farnesworth reported 

 that a similar mass weighing about 40 pounds had been found about a mile farther west before the war, perhaps about 

 1857, which has since disappeared, probably having become buried in rubbish." 



This meteorite consists of metallic iron, of a rounded irregular shape, with the usual coating of magnetic oxide, 

 and measuring 9 by 6.5 by 3.5 inches, and weighed 21 pounds. Over the surface at various points was a small bead- 

 like deliquescence of iron chloride. A portion was cut off at a machine shop and was described by the machinist as 

 " the toughest piece of iron" he ever handled. The usual markings were brought out by etching the polished surface, 

 though they were rather indistinct; at the same time, distinct particles of schreibersite were developed, disseminated 

 irregularly over the surface, which came out more prominently under prolonged action of the acid. Specific gravity, 

 7.46. Iron not passive. Dissolved in hydrochloric acid without liberation of sulphuretted hydrogen, leaving a very 

 slight black carbonaceous residue which contained Si0 2 , Fe, Cr, Ni, and P. The following result was obtained on 

 about one gram of the iron: 



Fe Ni Co P Cu Residue 



94.24 5.17 0.37 0.14 50. 0.15 =100.07 



Brezina, 2 in 1881, gave the following account of the structure of the meteorite: 



A piece of this meteorite shows that it belongs to the group of the same iron which, like the one variety, Szlanicza 

 (Arva), Caryfort, Sarepta, and Southeast Missouri, shows inclusions, in the midst of the coarse kamacite, of plates or, 

 upon the section surface, of ribs of porous schreibersite. The specimen exhibits upon the kamacite by etching only a 

 separation among grains of from 1 to 1.5 mm. in diameter, which indicates as plainly as possible that this iron must 

 have been at some time subjected to a forge fire; by continuous action of the acid the familiar glimmer arising from 

 the very regular striatums appears quite distinctly upon the entire surface of the section. Interspaces are not very 

 abundant, and are thickly filled with combs, so that the plessite is reduced to small amount. 



