610 



INDEX. 



P118& 



Natural Bridge. Arizona, location of s2,42 



Naviijo Rt>*ervation. sfeiion through 40 



Nowomiuu ii>riiialion. (kMinilion of 371 



rloraof 284 



N'eurnpteris heierophylla Brongn 210 



Ilulloni Dunk 161 



/i-7(i/<i (Phill.) I,. & H ftS 



receniior (Phill.) I,. A H 67 



Newbvrrj". J. S., fossil plants determined by 33, 277 



on Great Falls coal basin 278 



on fainted Desert 17-lS 



on pctrilieil trunks .S3 



Xeucomb. C. F.. fossil fern collected by 210 



New Reservoir, Washington. .Scf Reservoir. 



Xichol station. Oreg.. fossils from 4S".")0,217 



Nickel Mountain, Oreg., section through, figure show- 

 ing 47 



Nikolai Creek, Alaska, fo».sil plant from U6,l.')2 



Nilsonia Brongniart 77-78, 



90-97, 104, 219, 251-254, 303-306, 319-322 



V ^ijitalin Brongn 100 



brevis Brongn 322 



californica Font 96.252-253,271: PI. LXVII, Fig. 7 



compta (Phill.) Gopp 94-9.5. 



140, 143; PI. XVII. Figs. 11-14 



comtula Heer 2.")2 



elongata Brongn 322 



nigracoUcnsis Wieland. 319-322; Pl.LXXlII, Figs. ,ia-c 

 iiipponensis Yok... 94, 102,140,143; PI. XVII, Figs. 8-10 



orientalis Heer 90-91, 93, 140,143 



oricntalis minor Font... 91. 92, 140; PI. XVII, Figs. 1-7 



ozouna Yok 93 



parvula ( Heerj Font 92-98, 140, 143, 320 



polymorpha Schenk 319, 321-322 



polymorpha cretacea Penh 210 



pterophylloides Nath »«-9;, 140. 144; PI. XVIII 



pterophylloides Yok 90. 253 



? sambuccn.sis Ward 254, 271; PI. LXVII. Fig. 8 



schaumburgensis (Dinik.) Nath 2.54, 



2S4. 303-3(18, 307, 313-314, PI. LXXIl. Figs. 17-21 



Stantoni Ward 251-2.52, 271; PI. LXVII. Pigs. ,5, 6 



Nilssonia peeten Dunk 243 



pterophylloides Nath 96 



schaumburgensis (Dunk.) Nath 303-304 



Nomenclature used, system of 53 



Nottoway River, Va., fos.siIs from 3.59 



Nutta'l. Thomas, on Virginia geology :i46 



0. 



OdoiUoptcrit Leckenbyi ( Bean. ) Zign X9 



Odontopterideae 242 



Olalla Creek, Oreg., location of 4X 



Old Man River, North Fork of, Canada, fossil plants 



from 277 



Older Potomac formation, age of 579 



character of :i4(j-347 



conclusions concerning 57 1-580 



definition of 342, 263 



divisions of 478, .575 



fossil flora of 342-.599. Pis. LXXXI-CXIX 



species of, descriptions of.. 416-174, 479-482,484-4X6, 

 489, 492-508. 511-515, 617-518, .521-625, 629-.533,.535- 

 .530, i>38-M2, 546, 548-556, .558-566, 570, 572-.573 



occurrence of, discussion of 356,363 



Oleandra arctlca Heer 281 



Olrawlridium liltalum (Brongn. )Schimp 81 



Omphalomela scabra Germar 449 



Ono. Cal., fossil plants from 213-214. 221, 223 



Page. 



Ontario avenue, Washington. D. C, rocks on 382 



Onychiopsis Yokoyama 155-157 



elongata (tieyl.) Yok 157 



Mantdli (Brongn.) Sew 156 



psilotoides (S. & W.) Wanl 155-157, 



17:i-174. .504.-.50fi. 517. 518, ,528. .586; PI. XXXIX. 

 Figs. ;i-6; PI. CXI. Fig. 4; PI. CXIII. Fig. 1. 



Oolite of France, fossil from 72 



Oolite of Italy, fossils from 1.53 



Oolite of Yorkshire, fo.ssils from 60, 151 



Oregon. Curry County, fossil Hora of 146, 14-8-1.51 



Douglas County, fossil flora of. age of 141-145 



fossil flora of. list of 140-141 



descriptions of 53-139 



occurrence of 48-.53 



fo.ssil plants from Oroville and, comparison of.. 141-142 



from Siberia and. comparison L)f 143-145 



from Yorkshire and. comparison of 143-144 



fossil plants of. plates showing PLs. VII-XXXVIII. 



LXV-LXIX 



Oroville. Cal.. fossil plants from 103 



fossil plants from Oregon and. comparison of... 141-142 



Osborn. H. F.. mention of 14,207,31s 



Osmunda likkmnioidts Font.V 230-232, 2.S1, .538, 686 



Osmtmdites skidegatensis Penh 210 



Otopieris cuncata ( L. & H. 1 Presl 86 



Otozamites Klipsteini superba Sew 151 



oregonensis Font 150-151; PI. XXXVIII. figs. 13,14 



P. 



Pagiophylhimdubium Font 176,333,579-580 



sp. Dn 281 



Painted cliffs, Arizona, location and character of 16, 28 



Painted Desert, .\rizona, location and character of... li; 



name of IT 



section of, figure showing 39, 41 



Painted Desert formation, fossil wood in 37 



occurrence and character of 17, 27-28, 'i4-45 



section of, figure showing 45 



springs at base of 28 



Paleohillia arkansana Kn 341 



Paleozoic rocks, fossil wood from 36 



Paluxy sands, correlation of 331 



silicified wood found in 331, 3;J3 



?Parkeria sp. Roem 335-336 



Parkers Peak, Wyoming, section at 324 



Paskenta, Cal.. fossils from 222-223 



Patapsco formation, correlation of 395, 403, 598 



description of '. 397-398 



Patu.\ent formation, correlation of 395,403,598 



description of 39.5-396 



fossils of 399 



Peale, A. C, fossils collected by 145,177,279 



Pecopteris Brongniart 232 



AWinusii Dunk 230 



arbmrsccnn (Schloth. ) Brongn 232 



brevipennis Font 510, .586 



llromiiana Dunk 226,279 



(■onstricta Font .519, .586 



rotti/liffiri Dunk 230 



fIcnficiUata Brongn 68 



dailiciilala Heer 69, 1,57 



7^(aiA-er( Schimp 228 



c'fc<;an« (Giipp.) Brongn 230 



cxUiformis Geyl 228 



fjvVis Phill 74 



Geinitzi Dunk 297 



