434 MEMOIRS NATIONAL ACADEMY OF SCIENCES, VOL. XIII. 



of the latter whose arrangement approaches the dodecahedral system so that their enveloping 

 kamacite plays the r61e of swathing kamacite, and there are also present entire dodecahedrons 

 of schreibersite. 



Tazewell takes on strong permanent magnetism. The specific magnetism was deter- 

 mined by Leick as 2/73 absolute units per gram. 20 Farrington 21 found that Tazewell as well 

 as all the meteoric irons tested by him, was active; but it usually took as much as 15 minutes 

 before the deposition of copper occurred in Tazewell, while in the case of all other irons, even in 

 those equally rich in nickel, the reaction became distinctly noticeable in 4 minutes at the latest. 



The largest quantity of the meteorite (23 pounds) is in the Amherst collection. The 

 Washington Shepard collection has 1,943 grams; Harvard 754 grams. 



BIBLIOGRAPHY. 



1. 1854: SMITH. A new meteorite from Tennessee. Amer. Journ. Sci., 2d ser., vol. 17, p. 131. 



2. 1854: SHEPARD. New localities of meteoric iron. Idem, pp. 325-327. 



3. 1855: SMITH. Memoir on meteorites. A description of five new meteoric irons, with some theoretical considera- 



tions on the origin of meteorites based on their physical and chemical characters. 1. Meteoric iron from Taze- 

 well County, east Tennessee. Amer. Journ. Sci., 2d ser., vol. 19, pp. 153-159. (Analysis and illustration.) 



4. 1859: HARRIS. Dissert. GSttingen, p. 119. 



5. 1862: RAMMELSBEHG. Ueber das Schwefeleisen der Meteoriten. Mon.-Ber. Berlin. Akad., 1862, pp. 689-691. 



6. 1863: ROSE. Meteoriten, pp. 66 and 153. 



7. 1858-1865: VON REICHENBACH. No. 7, p. 551; No. 9, pp. 162, 174, and 182; No. 12, p. 458; No. 15, pp. 110, 113, 



and 124; No. 16, p. 261; No. 18, pp. 478 and 484; No. 20, pp. 621 and 634; No. 25, p. 436. 



8. 1869: MEUNIEH. Recherches. Ann. Chim. Phys., 4th ser., vol. 17, pp. 41, 44-46, 53, and 71. 



9. 1875: WRIGHT. Spectroscopic examination of gases from meteoric iron. Amer. Joum. Sci., 3d ser., vol. 9, pp. 



297-298. 



10. 1876: WRIGHT. On the gases contained in meteorites. Amer. Journ. Sci., 3d ser., vol. 11, pp. 256 and 257, and 



vol. 12, pp. 167, 168, and 169. 



11. 1880: BRBZINA. Bericht I. Sitzber. Wien. Akad., Bd. 82 I, pp. 350-351. 



12. 1883: SMITH. Concretions. Amer. Journ. Sci., 3d ser., vol. 25, pp. 417 and 419. 



13. 1884: MEUNIER. Me'te'orites, pp. 58, 59, 89, and 108-109 (illustration). 



14. 1885: BREZINA. Wiener Sammlung, pp. 207, 208, and 233. 



15. 1886. HUNTINGTON. Crystalline structure. Amer. Journ. Sci., 3d ser., vol. 32, pp. 289 (etching), 293, and 295. 



16. 1887: BREZINA and COHEN. Photographien, pis. 10 and 11. 



17. 1887: SORBY. On the microscopical structure of iron and steel. Journ. Iron and Steel Inst., 1887, pp. 255-288. 



18. 1893: MEUNIER. Revision des fers me'te'oriques, pp. 43-44. 



19. 1895: BREZINA. Wiener Sammlung, p. 267. 



20. 1895: COHEN. Meteoreisen-Studien IV. Ann. Hofmus, Bd. 10, p. 82. 



21. 1902: FARRINGTON. The action of copper sulphate on iron meteorites. Amer. Joum. Sci., 4th ser., vol. 14, pp. 



39-42. 



22. 1904: BREZINA. Ulber dodekaedrische Lamellen in Oktaedriten. Akad. Ana. der K. K. wins. Akad. in Wien. n. 



ser., vol. 25, p. 374. 



TEOCALTICHE. 



Canton Teocaltiche, State of Jalisco, Mexico. 



Latitude 21 25" N., longitude 102 27' W. 



Iron. Octahedrite (0) of Brezina. 



Found 1903. 



Undescribed. 



Weight, 10 kgs. (22 Ibs.). 



The only mention of this meteorite seems to be by Ward, 1 who gives the above information 

 and states that the original mass (weight 10 kilos) is in the Museum of the Institute Geologico, 

 City of Mexico. 



BIBLIOGRAPHY. 



L 1904: WARD. Catalogue of the Ward-Coonley Collection, pp. 25 and 89. 



Teposcolula. See Yanhuitlan. 

 Texas, 1808. See Red River. 



