INDEX 



Page numbers referring to descripti 

 type. 



Actinoceras, 416, 488. 



(Ormoceras) aff. tenuifilum, 517. 

 Actinoceratidae, 488-94, 511. 

 Actinosiphonata, 494-508, 511. 

 Adams, F. D., acknowledgments to, 



394- 



Ancistroceras, 522. 



dyeri, 522. 

 Angelinoceras, 522. 

 Annulosiphonata, 486-94, 511. 

 Aphetoceras, 473-75, 480, 510, 513, 

 521, 523- 



attenuatum, 465, 475, 508, 510, 512. 

 farnsworthi, 465, 473-74, 475, 508, 

 510, 512; figure, 474. 

 Asaphus canalis, 399. 

 marginalis, 401. 



Baltoceras, 431-32, 509. 

 pusillum sp. iiov., 431-32, 509, 512. 

 explanation of plate, 546. 

 Barrande, cited, 395, 415, 416, 426, 432. 

 Barrandeoceras, 454, 510, 513, 521, 

 523- 524- 

 minganense, 454. 

 natator, 454-56, 510, 512. 



explanation of plates, 592, 594. 

 Bassler, R. S., acknowledgments to, 

 394- 



Bathmoceras, 516, 517-18. 



Bathyurus, 399. 

 extans ? var., 399. 



Bedford, fauna, 525. 



Beecher, cited, 417. 



Beekmantown, Beekmantown beds, 

 396; fauna, 419, 430, 441, 496. 



Beekmantown formation, of Canada 

 and Newfoundland, 395 ; section at 

 East Shoreham, 399; of Newfound- 

 land, Quebec and Pbilipsburg, 395 ; 

 at Pbilipsburg, 395 ; Valcour sec- 

 tion, 397-98. 



Bclleropbon, 401. 



Berkey, E. P., cited, 515. 



Bibliograpby, 527-28. 



is of fossils are printed in black face 



Billings, E., cited, 395, 410, 424, 425, 

 429, 442, 443, 446, 447, 448, 449, 455, 

 456, 475, 482, 484, 488, 500, 508, 518, 

 525, 527- 



Black River limestone, 449, 520. 

 Blake, cited, 521. 



Blanchardville, Minn., fauna, 519. 

 Bolboporites americanus, 400, 401. 

 Brainerd, E., cited, 399, 400, 527, 528; 



work of, 394. 

 Bucania tripla, 399. 



Calciferous sandstone, fauna, 449. 

 Cameroceras, 404-5, 509. 



(Proterocameroceras) brainerdi, 

 405-8, 410, 420, 509, 512, 518. 

 explanation of plates, 530, 532. 

 curvatum sp. nov., 411-12, 509, 512. 

 explanation of plate, 532. 

 figure, 411. 

 tenuiseptum, 408-10, 412, 418, 509, 

 512, 518. 

 explanation of plates, 534, 536, 

 538, 540. 

 trentonense, 404. 

 Canada, Beekmantown formation, 

 395- 



Cephalopoda, statement of previous 

 investigations, 395 ; of Champlain 

 basin, relations to faunas of other 

 regions, 5i3~27- 



Champlain basin, connection with 

 Newfoundland embayment in Beek- 

 mantown time, 525. 



Chazy beds, Valcour section, 398 _ 99- 



Chazy village, section of Chazy for- 

 mation at, 400; fauna, 409, 411. 437, 

 448, 487, 490, 492, 503; fauna near, 

 494, 500. 



Cheirurus ?, 399. 



Cincinnati group, $21. 



Clarke. J. Ah, cited, 404, 426, 428, 439, 

 492, 515, 516, 517, 520, 528. 



Cleland, H. F., cited, 505. 528. 



Conoceras, 513, 517. 



