X INDEX 



Page 



Nepbriticeras sp 131, 158, PI. 37, 38 



Newberria Jobannis 93 



missouriensis 34, 35, 42, 93, PI. 18 



Nucleocrinus verneuili 22, 23, 57, 131, 132, 144, PI. 8 



Nucleospira concinna Hall . 278 



ventricosa 169, 202, 217, 249, PI. 52, 66 



Nucula lirata 42, 45, 1 12, PI. 25 



snyderensis 42, 112, PI. 25 



O 



Ohio Devonian 1 



Olive Hill formation 175 



Onondaga, relation of, to Little Saline limestone 213, 214, 215 



"Onondaga" limestone : " 9 



Orbiculoidea sp 41, 71 



Onychodus sigmoides 35, 131, 16k, PI. 39 



Ordovician x 



Oriskany, relation of, to Little Saline limestone 213, 214, 215 



Orthis resupinata 10 



tulliensis 16 



Ortboceras atreus 42, 12k, PI. 30 . 



constrictum 158 



pauciseptatum 173 



sp 39, 42, 123, 278, PI. 29, 30 



subulatum 131, 157, PI. 37 



Orthonychia belli 217, 25k, PI. 67 



praeconicum 218, 25k, PI. 68 



tortuosa : 218, 25k, PL «>7 



Orthopora rhombifera .■ -. 171 



Orthostropbla strophomenoides ' 171 



Outcrops of Mo. Devonian 3, 4, 7 



Owen on Mo. Devonian 25 



P 



Palaeonila compressa 6 



Palaeopinna flabellum ' 173 



Paleozoic in Mo 1 



Paltyostoma niagarense 173 



Paracyclas elliptica 34, 35, 36, 38, 42, 44, 45, 115, 116, 131, 155, PI. 36 



Paracyclas lirata 42, 45, 116, PI. 25 



Pelecypoda Ill, 149, 205, 252 



Pennsylvanian, relation of, to Callaway limestone _ 33 



Devonian 1 



Mineola limestone 19 



Pentamerella arata 22, 23, 87, 131, lk2, PI. 16, 17, Fig. 6 



dubia 35 



fultonensis 35 88, PI. 16, 24, Fig. 6 



missouriensis : 41, 88, PI. 23. 24 



Pentramites 58 



Perry Co., Hamilton rocks 24 



Pettis Co., Cooper limestone 13 



Devonian 3 



Phacops cristata 131, 163, 214, 218, 220, 268, 278, PI. 39, 71 



hudsonicus 167, 210, PI. 56 



logani 167, 211, PI. 56 



rana 131, 163, PI. 39 



sp • 218, 269, PI. 71 



Phaenopora tenuis 171 



Phelps Co., Devonian in . 276 



Phelps sandstone 7 



Philhedra crenistriata 41 



Pholidops oblata 131, 133, PI. 35 



ovata ! 215, 228, PI. 61 



ovatus 171 



Pholidostrophia iowaensis 22, 82, 131, 136, PI. 11 



Pike Co. Devonian 5 



Grassy Creek shale 5 



Mineola limestone 17 





