INDEX 



Aerolites, 4. 



Aiusworth > meteorite, 64. 

 Air pressure, 93. 

 Alloys, 28. 



definition of, 28. 



equDibrium diagrams of, 30, 31, 37, 



44. 

 eutectics, eutectoids of, 29, 30, 34. 

 graphite in, 23, 26, 34. 

 hysteresis in, 42. 

 iron, 26, 30. 



iron-carbon, 26, 28, 32-36. 

 iron-nickel, 36. 

 phase changes in, 30. 

 phase equilibrium in, 30. 

 solidification of, 29. 

 transformation of typical, 31. 

 Alpha-gamma. (See under Transfor- 

 mation.) 

 Alpha granulation, 5i. 

 Alpha iron. (See under Irou-carbou; 



Iron nickel alloys.) 

 Alpha veining, 51. 



Alteration. (See also Cosmic heating; 

 Heat alterations.) 

 by flight, 24, 72. 

 by weathering, 24. 

 Alteration zones, 72, 76. 

 Analyses, errors in, 9, 10. 

 Anorthite, 25. 



Apoala * meteorite, 47, 114, 167. 

 Arispe ' meteorite, 114, 122. 

 Ataxites, 65. 



alteration zones in, 72. 

 classification of, 7. 

 c'eavage in, 76. 

 definition of, 6, 46. 

 kamacite in, 13, 46. 

 nickel-poor, 7, 75. 



alteration zones of, 71, 72, 75. 

 analyses of, 10. 

 cleavage in, 76. 

 composition of. 38. 

 definition of, 38, 69. 

 granulation in, 50, 51. 

 Neumann lines in, 4, 76, 88. 

 nickel content of, 7. 

 [The following meteorites are 

 nickel-poor ataxites: Ches- 

 tervUle, Cincinnati, Forsvth, 

 County, Locust Grove, Me- 

 jillones, NedagoUa, Primi- 

 tiva, Rasgata, San Francisco 

 del Mezquital, Santa Rosa, 

 Siratik, Soper, Tocavita — 

 q. v.] 

 nickel-rich, 7, 65. 



cold- working in, 69. 



< Octahedrite. 



» Ataxite, nickel-rich. 



s Hesahedrite. 



507394—44- 



-20 



Ataxites — Continued. 



nickel-rich — continued. 



composition of, 7. 



definition of, 38. 



gamma-alpha transformation 

 in, 66, 67. 



in two-phase equilibrium struc- 

 ture, 67. 



kamacite in, 65, 67-69. 



nickel content of, 7. 



paraeutectoid structure of, 30, 

 46, 50, 58, 67-69, 73, 81. 



phosphorus in, 80-83. 



plessite in, 47, 6-5-67, 69, 70. 



taenite in, 67-70. 



transformation temperature of, 

 69. 



transitional types of, 5. 



[The following meteorites are 

 nickel-rich ataxites: Babb's 

 Mill, Cape of Good Hope, 

 Cowra Creek, Deep Springs, 

 Freda. Guffey, Hoba, Illi- 

 nois Gulch, Iquique, Klon- 

 dike, Kokomo, Limestone 

 Creek, Linville, Monahans, 

 Morradal, Muchachos, Nord- 

 heim, Octibbeha County, 

 Rafriiti, San Cristobal, San- 

 taCatharina, Shingle Springs, 

 Smithland, Ternera, Tlaco- 

 tepec, Tucson, Wiley — q. v.] 

 result of structural changes, 46. 

 sheen in, 11. 

 troilite in, 13. 

 Atomic planes, effect on sheen, 12, 14. 

 Austenite, 32, 34, 35. 



Babb's Mill 2 meteorite, 7, 71, 114, 146. 

 Bacubirito ' meteorite, 114, 138. 

 Ballinoo * meteorite, 114, 138. 

 Bands, daubreelite, 18. 



hatched, 12, 61. 



kamacite, 4-7, 14, 16, 23. 46, 47, 56, 

 65, 74, 88, 96. 



Neumann, 88. 



slip, 89. 



taenite, 62. 



in Widmanstatten structure, 4, 8, 

 54. 

 Barranca Blanca ' meteorite, 63, 114, 



162. 

 Beaconsfield ' meteorite, 22. 

 Bear Creek i meteorite, 17, 66, 114, 156, 



157. 

 Bendego > meteorite, 22, 114, 128. 

 Braunau * meteorite, 88, 114, 170. 

 Breece ' meteorite, 114, 167. 



199 



