VIII 
PAGE. 
Ning-shan basin, ‘dikes iti..).cs eee tees ace 153 
faults ins {20.00 ee ee ee 153, 155, 156, 165 
phiysiography ‘of: ol oie ntcameoe intone 205-206 
SeChous AcChOsS jnwesce ee tee eee 154 
Shan-si rocks tis 55. 2k ree eee Oren 148-149 
structural ‘geology of 0... Cote carat ene. oe 153-156 
Ning-shan formation, age'of. 7.2060. ee dees e 151 
character and occurrence Of7207% 0.0 52.05... 151-152 
contact between Shan-si seriesand............ 151 
faults related toci sy... ac urasa caesar ee 152 
Nodules, calcareous. See Loess-mannchen. 
Norite, occurrence of. ..0. 5s inset oun eecese eh ec clee 47 
Normal faulting. See Faulting. 
Notothyris waillistana Girty..........0ccccceceecs 276 
Nu-wang-miau. See Liu-wang-miau. See Errata, 
pox. 
Obolella astatica Walcott... .0ceccccnes cue ce sents 27,272 
Obolus (Westonia) blackweldert Walcott........... 40, 41 
(Lingulella) chinensis Walcott............... 40 
(Lingulella) damesit Walcott................. 39, 40 
(Lingulepis) eros Walcott. . 6.06. ccc cesccsce 39 
MiGBTINGISS, ELAM 56 cas chen: Bara arin ere oe 42 
mantmus: Walcott {os sacievo cocci yet cists ee 40 
obscures: Waloott solos 5: «s/o etieeienelete ai ers 37,39, 143 
Shamssensss Walcott i ioccnt.cctesnd eoicis nas ctOee 145, 272 
SDD fa Sirattaico esta elie reba adartasn, oc) scMya wn sser saceemer amen ents SUerone 36 
{Lengulepis?) ap; tndet.. co ..acu7<24 tae cae 145 
{Westonia) ap: undet 23.4 1 anita ae 42 
Obrutschov, B. A., citedon rocks of hills near Wén- 
shui-hiéw. 25. .cchen arate antes 167 
cited on Sinian limestones in the Shi-hia-shan, 
GID OF 3,9 ak nlehaks Oe Re Meee eae 174 
cited on structtre in Asia. i s2..0....2.00 297 (note) 
cited on the Shi-hia-shatts.......560 s0a« cules os 4 173 
route traveled by, between T’ai-yiian-fu and 
Fon-choéu-fujc seve senha tne Sesion es 172 
Oolitic bodies, occurrence of, in Sinian rocks....... 144 
Oolitic limestones, character of...............222. 30-32 
Ofigin OFS i.e walcte sp aetastan ao melon 31-32 
sections: of hai bas cea nie seca deeteoe 18, 22, 23 
Ordovician formations, character of....... 18, 22, 23, 50, 100 
contact of, with Po-shan shales.............. 48 
distetbuGort OF ie 654s hte ie ne en te as 44 
fault contact of, with Carboniferous.......... 155 
fault contact of, with T’ai-shan gneiss........ 155 
Sections Of. wees be uaa blak 18, 22, 23, 35, 50, 98 
thicksess (Of i fecrancr sic eee aie 18, 22, 23, 50 
See also Cambro-Ordovician rocks, Tsi-nan 
limestone. 
Orientation, errors of, in graphic triangulation...... 8 
Orthts (Plectorthis) agreste Walcott............... 32 
calhgramma. Dalman 3 )0)5:< ay s'efsistere cieueteisie avd ee 271 
(Plectorthis) doris Walcott.....000..cece000. 42 
(Plectorthis) kaysert Walcott..............00. 36,42 
(Plectorthis) kichouensis Walcott............. 143 
(Plectorthis) linnarssoni Kayser.............. 42 
(Plectorthis) pagoda Walcott................. 36,42 
Orihoceras sp, undet., - vas cause ene 42,45, 46, 270 
Orthotheca cyrene Walcott..........svcccsccceses 36,42 
Cyrene dryas Walcott s,s ceca eae 40 
BaulisW aleott i.0 S ead on eee eee 32 
Gelphus: Waleottcs sine cited coke 40 
doris, Waleottcdisscim nee, a eae ee 272 
glabra: Waleatts tick su deem nee 145 
SP) Vndet nge oo ois ac iate, here ee eee 42 
OF OUChIG LP): SD acre eke pina iis ee ee 276 
O-shan, age Of .cc.c8Gk seat one eee 256 
normal fault at foot of...................173,176, 181 

INDEX TO PART ONE. 
PAGE. 
O-shui-ho, canyon of, declivity of................ 210 
canyon Of; Section I... <.05 vais os n ea eieie nets 141 
canyon of, unconformable contact of Sinian and 
Si-Clar rocks ints c.ss:o0 cise sivere ee eee 136 
side canyon of, near Yen-t’6u, view of........ 140 
valley of, Sinian limestone cliffs in.......... 140 
Ostracoda undets... 2 ccs cutie Oe aes ciate 170 
Pagoda hill, Ch’au-mi-tién limestone of........... 42 
Pagodta Bia. Waleott s oiciiaic.s sec pases Gels 02 a ee 36,42 
Golo Waleattind scieia nccacunce@e Welak) «ate phates ce canes 36 
Pospe WROD ccc bee ase pin wate 2k CLE wee 42 
macedo Walcott... ou cnn deuce awn «sm wrens 36 
Pa-ho, CaNYOUS NEOF co. ni. eho OG ak Eo ow eles 333 
Canyon tiear, View Of.) 40 r.csuu ale ns pi slomprete.« na 330 
Pai-kia-tien, rocks near, stratigraphic relations of. 312 
Pai-kiu-hia, regionnear, topography and geology 
Obscene eee or ee 301-302, 331 
Pa-kua-miau, geology near.........c0ccececnsees 302, 303 
highway ‘tear, View ‘Ofj.«.2nr0 cmiatanie stele ives 12 
LOPORLADNY MEATS a icss si0ic nom nye ehe vis lake axchelere Gi 33k 
upland valley near, view of................. 326 
Pa-li-kuan, geology eat't.. ..0.c « visjcisisiers Sesenere wise eye 303 
VICW. ICA Si cccieiaydosienels tenptsts tatereiereiel seit etre Pscenetarate 3 
Paleozoic era, erosion and deposition during, in 
Wt-t’al district... cc00eaassaa ane 165 
Paleozoic rocks, Appalachian province, shingled 
Straeture ii... dee nioe hove ete ere eee 158 
Paleozoic rocks. 
See Algonkian, Cambrian, Carboniferous, 
Ordovician, Pre-Cambrian, Sinian 
system. 
Pa-tung-hién, coal in K’ui-chéu series near........ 278 
Pau-ting-fu, altitudes at and mear................ 10, 343 
geogtaphic position! Of ;.¢.2acism< 35 u alate taisitats 6 
physiographic features near...............-. 203-204 
stadia traverse from, to T’ang-hién........... 6-7 
Pel river altitude: O85 20 einewas eid ate Gore aera 197 
Pet=t’ai, altitude O85 64 casa domes cise ae ean 349 
rocks composing summit of............++++. 119 
Pei-t’ail gneiss; character. OF © oi. cis ciee,exsietam eons 100, 106-107 
CORPELATION: OF vc ca cc.cin ote reduspinedsee rans one eset et 107 
ORLUTLONCE Oo é.6.5: sie: sos: icceryneher an eins ahovoeetatataee 106-107 
Straligraphic POSitlOM Ole <ecciislsluiucieivicsaleaeiee 107 
Pei-t’ai stage of topographic development, age of. . 246, 261 
Brea Ex hi rtine a cys,cyesarsraus ncsie adspominielsianieabiags 338 
features O8 o5, cig. <)sAvbiats keel cinemas eae 237-238 
peneplanation of northwestern China during. . . 165 
Pei-t’ai-shan, Pei-t’ai gneisS On.......--.s--+s+05 106-107 
Peking, bed rock at. depth Ofs.02 +s «ssiseuiani< sess 200 
voiell ats,,.<siissc sins bk Visas micah 202 
eter ht ks tt Roe RRR er PORCH eR eC Ee 196—197 
Ta-yang limestone in mountains west of....... 123 
water-bearing sand beneath................. 201 
NROLNS AIR sto o tess, eratsne po Tete te oe oils es Ni) AES 200-202 
Peking Bay, altitudes about. «00.6005 ome ew ews 197 
artesian waters: Of..010,0\c 0s. sc orale ies ond unui 196—202 
Sept ls 6 Tillage G00. ceed) ocesevsus-dud awe Spee 200 
mountains surrounding, altitudes and features 
Olsaatiocdetenns sete iia yee 197, 199 
PEVELS COROT asec aig 2 clei adeiinss Sue aAieeleaie 197 
Peking Plain, Teatures OF se cca.caperassicmarsisteataebssaraes 198-200 
sand and gravel deposits of................. 198-199 
subsidence and deposition in................. 199-200 
Palecv bod inGet . «sowie damn on wkiteeee 276, 278 
Pelites, occurrence of, Shi-tsui group............. 119 
Pennsylvanian rocks near Yen-chuang, section of... 50 
Permo-Carboniferous rocks, exposures of.......... 170 
