INDEX 



Page munbers referring to (lescri[)tions of fossils are printed in l)lack face type. 



Acephala, 83. 

 Acidaspis sp., 69. 



tuberculata, see Ceratocephala tuber- 

 culata. 

 Actinopteria, 156. 



sf?., explanation of plate, 290. 



boydi, 230. 



communis, 44, 65, 155, 156, 245. 

 explanation of plate, 290. 



eschwegii, 230. 



(Pterinea) fronsacia, 85, 230, 245. 

 explanation of plate, 290. 

 figure, 230. 



textilis, 34, 35, 44, 106, 154. 156, 245. 

 explanation of plate, 290. 

 var. arcnaria, 156. 

 Adams, F. D., acknowledgments to, 84; 



mentioned, 141. 

 Alga, 34, 36, 114, 249. 



explanation of plate, 348. 

 Ambocoelia, 182. 

 Ambonychia sp.. 58. 



Ami. H. M., work of, 20; cited, 29, 32, 89. 

 Amphigenia, 165. 



elongata, 166. 

 Amphistrophia continens, see Strophonella 



(Amphistrophia) continens. 

 Amphitheater, 73. 

 Ampyx, 70. 



hastatus, 60, 61. 

 Ancistroid spicules, 222. 

 Angers schists, 127. 

 Angola shales, 233. 

 Annelida, 43, 65, 117-42, 243. 

 Anodontopsis, 34, 71. 



ventricosa, 162. 



Anoplia nucleata, 45, 125, 211-12, 248. 



explanation of plate, 334. 

 Anse au Gascon, 1', 88, 114. 

 Anticosti, Island of, vSiluric rocks, 100. 

 Aparchites, 141, 244. 



sp-< 43- 



whiteavesi, 141. 

 Appalachia in Gaspe, 12-15. 

 Appalachian geosyncline, 98. 

 Arges, 137. 

 Arisaig, fossils, 34. 

 Aroostook county. Me., 226. 

 Asaphus, 72. 



micrurus, 120. 



pleuroptyx, 120. 

 Astrocerium, 87. 

 Athyris (Merista) arcuata, 33, 175. 



(Meristella) bella, 91. 



hera, 85, 236-37, 247. 



explanation of plate, 320. 



laevis, 26, 28, 33, 175. 



spiriferoides, 237. 

 Atrypa fiabellites, 174. 



laevis, no, 176. 



palmata, 174. 



(Eatonia) peculiaris, 172, 173. 



pleiopleura, 171. 



reticularis, 26, 28, ;^t,, 34, 35, 88, 89, 91, 

 109, 247. 



semiplicata, 108. 



singularis, 173. 

 Atrypina sp., 34, 35, 109, 247. 

 explanation of plate, 310. 



imbricata, 34, 35, 109, 247. 

 Autodetus beecheri, 43, 117, 243. 



explanation of plate, 274. 



349 



