INDEX. 



Page 

 Acoustic phenomena of falling 



meteorites 9, 1 1, 14 



Aerolites 18 



Analyses 25 



Classes 24 



Definition 18 



Description 23 



Aerosiderites 18 



Analyses 19 



Definition 18 



Description 18, 22 



Aerosiderolites 18 



Analyses 23 



Definition 22 



Description 18 



Agates, Theory of formation of.. . 197 

 Age of the "Pillar of the Consti- 

 tution" 254 



Allen, J. A., quoted 200 



Almy, John I)., Communications 



with 22 1 



Altitude of Ixtaccihuatl, various 



determinations of 107 



snow line on Popocatepetl. . . 92 

 Popocatepetl, Various deter- 

 minations of ' 87 



Altitudes near the Ranch of Tla- 



macas 00 



Amaga\ Iron mining District of 131, 143 



Town of 143 



Amalfi, Mining District of 131, 137 



City of 137 



Ameca, Town of 78, 308 



Ameca-Ameca, same as Ameca. 



Amphoterite 24 



Amyzon shales 199 



Anaime, Mercury ores of 169 



Analysis of — dolomite 230 



Hopewell Mounds meteorite. 313 



inesite 223 



Long Island meteorite 297 



Page 



Analysis of — taenite 314 



Toluca meteorite 308 



Analyses of meteorites, quoted 



19,23,25,310, 313 



Anchitherium 185 



Andesite, Amphibole, of Ixtacci- 

 huatl 119 



Hypersthene.of Popocatepetl 100 



Anori, History of 138 



Mining District of 131, 138 



Antioquia, Department of 130 



District of, West 141 



Mining districts and ores of.. 130 

 Anza, Mining District of. 131, 141, 142 



Aragonite 249, 254 



Arsenopy rite, in needle form 147 



Ascent of- Ixtaccihuatl 104, 105 



Popocatepetl 82 



Asiderites 18, 23 



Astroccenia conica 215 



Awaruite 19 



Atlantosaurus 281 



Baker, Frank C, quoted. .86, 105, in 



Ball.S. H 181 



Bats, Distribution of in caves 148 



Becker, G. F., quoted 265 



Bibliography of Geology of Co- 

 lombia 1 74 



of Popocatepetl and Ixtacci- 

 huatl 73 



Biela's Comet 29, 30 



Bird Remains 199 



Anatidae 198 



Fringillida? 200 



Galla; 200 



Blatchley, W. S., quoted. 247, 249, 



253, 264, 265 

 Bradbury, Dr. S. M., Correspon- 

 dence with 267 



Breccia from weathering of pyr- 

 rhotite 142 



317 



