METEORITES OF NORTH AMERICA. 257 



Solution of 31 grams in dilute HC1 gave: 



Dissolved nickel-iron 95.84 



Taenite 1. 74 



Angular pieces 0. 12 



Schreibersite 2. 12 



Rust and carbonaceous substance 0. 18 



100. 00 



The schreibersite is normal in appearance, tin white to steel gray, cleavable with conchoidal fracture. The taenite 

 resembles that of Glorieta Mountain in that the foliaj are mostly united in bundles and are only exceptionally inter- 

 rupted by angular pieces. 



Brezina's 4 description is as follows : 



The bands are noticeably puffy, much grouped and crumpled; lamellae 0.6 mm. in width; kamacite hatched, some- 

 times flecked; taenite well developed; fields quite numerous and large, for the most part filled with very fine ridges, 

 often running in only one direction, which, in a diagonal cross section gives the areas a granulated appearance; only 

 the smallest fields are empty, which then appear very dark. Schreibersite is very abundant, in large compact plates 

 parallel to the kamacite bands of equal or greater breadth with the latter, also as granular-puffy borders around the 

 troilite concretions. Numerous Reichenbach lamellae 2 to 3 cm. in length occur which are conspicuously irregular 

 in accordance with the general crumpling of the figures. These are often accompanied with quite compact schreiber- 

 site, serving as a nucleus for the lamellae. 



The meteorite is chiefly preserved in the Vienna collection. 



BIBLIOGRAPHY. 



1. 1886: Hidden. On two masses of meteoric iron of unusual interest. — 1. The Independence County, Arkansas, 



meteorite. (Illustration and analysis by Mackintosh.) Amer. Journ. Sci., 3d ser., vol. 31, pp. 460^163. 



2. 1887: Brezina. Neue Meteoriten Ilia. Verhandl. k. k. geol. Reichsanst., 1887, p. 288. 



3. 1891: Cohen and Weinschenk. Meteoreisen-Studien. Ann. K. K. Naturhist. Hofmus. Wien, Bd. 6, pp. 131, 



158-159 (analysis), 162, 164, and 165. 



4. 1895: Brezina. Wiener Sammlung, p. 280. 



5. 1895: Cohen. Meteoreisen-Studien IV. Ann. K. K. Naturhist. Hofmus. Wien, Bd. 10, p. 90. 



Kanawha. See Jennies Creek. 



Kansada. See Ness County. 



Johnson County. See Cabin Creek. 



JONESBORO. 



Washington County, Tennessee. 

 Latitude 36° 16' N., longitude 82° 30' W. 

 Iron. Fine octahedrite (Of), of Brezina. 

 Found 1891; mentioned 1892. 

 Weight, 30 grams (1 ounce). 



Nothing seems to be known of the history of this meteorite. The first mention of it seems 

 to have been in a price list published by Ward's Natural Science Establishment in 1892, 1 in 

 which the locality was given and the weight 1 ounce. The whole piece seems to have been 

 acquired by the Vienna Museum and was described by Brezina 2 as follows: 



The Jonesboro iron appears, on the small specimen found in our collection, to be completely bounded by octahedral 

 weathered surfaces; lamellae 0.25 mm. thick, straight, with little or no bunching; kamacite abundant and hatched 

 lengthwise; fields abundant, comparative large, filled with bright, lustrous plessite. which exhibits a very fine repe- 

 tition of the band system. 



Cohen 3 gave a further account of the structure of the iron as follows : 



The straight, sometimes slightly bunched lamellae are long, not puffy, and only occasionally slightly granular. 

 The taenite borders are not very prominent. The fields are tolerably large and prominent. A characteristic of this 

 iron is the unusual abundance of very distinct hatching running in every direction in the kamacite; many bands 

 appear somewhat speckled apparently because of the compact bunching of tiny etching pits. The fields are not, as 

 Brezina thought, a repetition of the band system, but are completely filled with comparatively bright, fine-grained 

 716°— 15 17 



