INDEX 



AlinKAI- polCh, 261 



Acantboceratidas, 179 

 Acanthodii, 236 

 Accinthothyris, 37 

 Accretion, Growth by, n, 



12, 263 



Acervularia, 310 

 Acidaspidae, 210 

 Acme, 19 

 Acrosalenia, 273 

 Acrotrcta, 25 

 Actaon, 119 

 Actinal Furrows, 276 

 Actinocainax, 187 

 Acfinoceras, 149 

 Actinocrinus, 254 

 Actinodonta, 77 

 Actinopterygii, 228 

 Actinozoa, 797, 309 

 Adacna, 80 



Adaptation, 73, 76, 205, 231 

 Adductors, 10, 13, 26, 50 

 Adesmacea, 92 

 .Eglina, 209 

 Agnostns, 210, 2ii 

 Agoniatites, '/o 

 Alar septa, 301 

 Alcyonaria, 313 

 Alectryonia, 89 

 Algae, 333, 347 

 Atethoptens, 340 

 Alvcolina, 325, 327 

 Alveotites, 314 

 Alveolus, 183 

 Amaltheidae, 161, 174, 175 

 Ambitus, 261 

 Ambulacra, 260, 262 

 Ambulacrals, 246 

 Ammonites, 169 

 Ammonoidea, 148, 384-390 

 Amphibia, 229, 237 

 Amphiccelous, 228 

 Amphidetic, 51 

 Amphoracrinus, 247, 254 

 Amphoridea, 258 

 Ainfle.vus, 303, 310 

 Ampyx, 209, 212 

 Anabacia, 313 

 Anagenesis, 136, 143, 167, 



308 



Anal Plate and Tube, 248 

 Anal Pyramid, 256 



407 



