210 
INDEX. 
Pag£. 
Nucleospira pisif ormis 44 
Nucula --. 36,79,90 
Nylander , O. O. , aid rendered by 14 
fossils collected by 14,54,55,78 
Olivenbaum farm, New Sweden, rocks 
and fossils at 51 
Oriskany fauna of Becraft Mountain, 
New York 43-43 
Oriskany sandstone, European equiva- 
lents of 26 
features of fossils of 61 , 62, 88-92 
horizons equivalent to 80,82 
Odontocephalus 44 
Oncoceras 36 
Orange Bay, fossils of 34 
Orbicuia . 34 
Orbiculoidea 42 
Ormoceras 41 
Orthis 28, 29, 30, 32, 33, 34, 36, 37, 38, 40, 
41, 42, 43, 44, 47, 48, 50, 51, 52, 53, 55, 86, 91 
Orthis lunata 83 
Orthoceras 28,29,30, 
32, 33, 34, 36, 41, 46, 53, 56, 79, 86 
Orthoceras bullatum 83 
Orthoclase and microcline intergrowth, 
figures showing 149, 150 
Orthonota 35,41,79 
Orthorhynchula 57,59,60 
Orthothetes 42,47,49,50,51,53,55,90,92 
Pachypora... 38 
Packard, A. S., surveys by 103 
Paleocyclas ... - .. 53 
Paleodelasroa - 48 
Paleoneilo 79,86 
Paleozoic faunas known from Maine- . . 27-36 
Paleozoic rocks, Canada, classification. 22-24 
Parazyga 55 
Parlin Pond, fossils from 30, 89-90 
Pembroke, fossils from 29 
Penobscot Bay, fossils of 35 
section at (note) 35 
Pentamerus 36, 37, 39, 40, 48, 49, 53, 54 
Pentamerus pseudogaleatus 38 
Perham Township, volcanic conglom- 
erates in 128,130-131 
Perlitic rhyolite, features of 157-158 
plate showing 158 
Perry, fossils from 28,31 
Petraia 29 
Petrographic descriptions, tuffs 122-126 
volcanic conglomerates 128-131 
Phacops.. 32,41,42,53,56 
Phacops logani 51 
Phillipsastrea 40 
Pholidops 33,42 
Phragmoceras 41 
Pirsson, L. V., analyses by 155-156,166 
petrographic work by 11 
Plagioclase crystal, diagram showing 
optical measurements of 182 
Platyceras 32,33,34,42,43,50,53,56,90,92 
Platyostoma 29,30,31,33,34,36,38,39,47 
Page. 
Plethorhyncha 60 
Pleurodictyum 44,79 
Pleurotomaria 28, 29, 35, 36, 40, 41, 42, 48, 86 
Pocomoonshine Creek, localities exam- 
ined on 203 
Polydelasma turbinatum 53 
Polypora 37,38,40,43 
Port Daniel sandstone, age of 23 
Pratt, J. H., analysis by 176-177 
Presque Isle, fossils from 30, 44, 79-80 
localities examined at and near. 195, 196, 197 
Presque Isle Brook, fossils from 78-79 
Presque Isle River, sandstone on. 133-134 
trachyte on Ill 
localities examined on and near 196,197 
Presque Isle Station, arenaceous lime- 
stones near 140 
Presque Isle- Ashland road , volcanic tuff 
on 121 
Presque Isle-Maple ton road, section on . 113 
Productus 44 
Proetus 31,32,33,36,40,41,42,53,56 
Psilophyton 31,79,89 
Psilophy ton princeps 87, 88 
Pterinea 33,37,39,41,79,86 
Ptilodictya 37,38,40 
Pugnax 57 
Pullastra 86" 
Pyles Hill, localities examined at 201 
rocks of 109 
Q. 
Quartz-trachytes, analyses of 166-167,188 
occurrence and character of 111,164-168 
Quebec formation, age of 23 
Quoggy Joe Mountain, localities ex- 
amined at 195 
quartz-trachyte at 111,164-168 
R. 
Reptaria 43 
Renssekeria 30,33,34,40,43,79,80 
Rensselaeria o voides, horizon of . . 24 
Retzia... 29,32,33 
Rhynchonella 29,30,31,32,33,34,36,37, 
39, 40, 41, 43, 53, 55, 57, 58, 67, 86 
Rhynchonella abrupta . . 64, 68, 69, 70, 71, 72, 73, 77 
Rhynchonella acutiplicata 75 
Rhynchonella altiplicata 69, 75 
Rhynchonella aspasia 58,59,69,75,76,77 
Rhynchonella barrandi 74 
Rhynchonella bial veata 75, 77 
Rhynchonella campbellana 71, 73 
Rhynchonella fitchana 74 
Rhynchonella f ormosa 38, 58, 75, 76 
Rhynchonella inutilis 76 
Rhynchonella loxia 
Rhynchonella mainensis < 
66,67-68,69,70,77, 
Rhynchonella multistriata 
Rhynchonella mutabilis. 66, 69, 70*71, 72, 73, 74, 
Rhynchonella nobilis 71 , 73, 
Rhynchonella nucleolata 'i 
66,68-69,71,72,73, 
Rhynchonella nucula 
