40 MEMOIRS NATIONAL ACADEMY OF SCIENCES, VOL. XIII. 



BIBLIOGRAPHY. 



1. 1869: Shepard. Notices of new meteoric irons in the United States. — 1. Meteoric iron from Auburn, Macon 



County, Alabama. Amer. Journ. Sci., 2d ser., vol. 47, pp. 230-233 (analysis). 



2. 1870: Smith. On the presence of cobalt in meteoric irons. Amer. Journ. Sci., 2d ser., vol. 49, p. 331. 



3. 1885: Brezina. Wiener Sammlung, pp. 218 and 234. 



4. 1891: Cohen und Weinschenk. Meteoreisen-Studien. Ann. K. K. Naturhist, Hofmus, Wien, Bd. 6, p. 160. 



5. 1895: Brezina. Wiener Sammlung, p. 290. 



6. 1905: Cohen. Meteoritenkunde, Heft 3, pp. 215-217. 



Augusta, 1848. See Castine. 

 Augusta County. See Staunton. 



AVTLEZ. 



Near Cuencame^ Durango, Mexico. 

 Latitude, 24° 50' N.; longitude, 104° 34' W. 

 Stone. Spherulitic chondrite (Cc) of Brezina. 

 Fell June, 1856; described 1867. 

 Weight 236 grams (0.5 lbs.). 



This meteorite was first mentioned by Wohler ' as a gift to the University collection at 

 Gottingen received from Bremen. It was a stone brought from Mexico by Julius Hildebrand, 

 who lived several years at Durango. According to a verbal statement made by Hildebrand 

 to Wohler, he obtained the stone soon after its fall in the summer of 1855 or 1856 from an ac- 

 quaintance who lived at Cuencame, about 30 mdes northwest of Durango. This gentleman 

 had heard from the natives of that place that stones had fallen from heaven upon the estate 

 of Avilez in the vicinity of Cuencame, and lay buried deep in the earth. This stone was still 

 hot when dug up, but as it was supposed to be of no value, it was thrown away again. At 

 the instance of this gentleman one of the pieces was found again and brought to him, and he 

 sent it to Hildebrand. The usual fire-phenomena seem not to have been observed by the people. 



The stone obtained by Hildebrand weighed 146 grams. It was evidently a fragment of a 

 larger stone, apparently broken from the corner of the original. It was covered on three sides 

 with a black, dull, wavy crust. The interior was gray, fine grained, and enclosed here and there 

 brighter particles and chondri. It contained unequally distributed grains of metallic iron 

 and strongly affected the magnetic needle. 



Burkart 3 pointed out that Cuencame does not he northwest, but 20 leagues northeast of 

 Durango, and that it was not an estate, as Buchner stated, but a mining village and chief place 

 of the region of the same name, which, according to the map of Garcia y Cubas, lies 24° 40' N. 

 and 4° 8' W. of Mexico. 



Avilez was formerly set down as Cg by Tschermak, but Brezina I0 convinced himself 

 that it belonged to Cc. 



bibliography. 



1. 1867: Wohler. Notice of a meteoric stone from Mexico. Gottingische Gelehrte Anzeigen (Nachr.), 1S67, 



pp. 57-58. 



2. 1869: Buchner. Vierter Nachtrag. Ann. Phys. und Chem., Poggendorff, Bd. 136, pp. 450-451. 



3. 1870: Burkart. Fundorte IV. NeuesJahrb., 1870, pp. 683-684, 689. 



4. 1884: Hapke. Beitrage. Abhaudl. naturwiss. Verein Bremen, Bd. 8, pp. 515-516. 



5. 1885: Brezina. Wiener Sammlung, pp. 182 and 232. 



6. 1887: Flight. Meteorites, p. 92. 



7. 1887: Brezina. Neue Meteoriten III. Ann. K. K. Naturhist. Hofmus. Wien, Bd. 2 (Not.), p. 115. 



8. 1889: Castillo. Catalogue, p. 13. 



9. 1890: Fletcher. Mexican Meteorites. Mineral Mag., vol. 9, p. 95. 

 10. 1895: Brezina. Wiener Sammlung, pp. 249 and 255. 



Austin, 1836. See Wichita County. 

 Austin, 1856. See Denton County. 



