INDEX. 
Page 
Coppor-ore ...... «2. Se eT eee eee 114 
Cot aI sisi. silat en canetacal ewe oat ec ae 133 
CONPUUE asset toes ec e ee clea tessa stl oes 79 
Corvus americanus ... 22. ..02ee eee ne eee voce eens 7 
COV UM sepicia icine aaa olds cSigva cus aiaia dots wratana ane ete ied 79 
Cottonwood Creek..........2.....0. 2... weeee----16, 109 
Coturniculus passerinus perpallidus ....22. 2.222. --.. V7 
Cotyle riparia 0.22. ooo 2 cece eee cece cue eee cee eee 75 
Cow Bunting.... 022.0. 02. ce cece cece ee cee eee ae 78 
COVOLS Soins ce skdiecd smaacd Suiba pee weececeeedice nce 64 
Crane, Sandhill... 22. ...0.. 0002 cece cece cece cece ee 87 
Crassdtella.... .. 2.0. eee ce cece cece cccenecccceeees 198 
VAMOSA 00-2. ee ee eee eee Became aaunains 122 
Crater of Old Faithful... 220-0000. .0 ccc cece eee 26 
Crazy Woman’s Mountains..................-----. 57 
Crepicephalus (Loganellus) montanensis ........-... 117,141 
Cretaceous clays....2. 20... 000020 cece ee eee eee 97 
NO. Ais eon aaa mareeessyitinawawiens veneer 99 154 
NG. D ule see eeeee Beas cate oeads 103, 134 
IN Os. Gz avaeiss fiat Soc fate oye dt ads 127, 185 
Crooked Creek........ 0.0202 cece ceecce caeeee 13, 64, 101 
Crossbill, Red . 22.2000. 0.22. cece cece cece ee ee 76 
CROW fo onde «Sauce se 42s bss aeadan Goose deadbeat 79 
AMONCY 3 Ol i aicicc sawn coamacaacanuiseceeete’s 57 
Crow, Clark’s..---.. 22220 coce ceccee ecee cee eeneee 79 
ClOWS s sees weendce ee condaclandes fees c cecanaous 14, 15, 64 
CV YDUON EUG: ao 8 oe ens eal teens <oe nae cveakn wed 2 107 
Crystals of gypsum ..-... 2.22.2... cee eee eee eee 99 
OMCNU Eisai ance Oecd cea ee cane Dok amen aon 80 
Curlew, Long-billed ...... 022... 222. cee eee cee 87 
Cyanospiza Amana .... 22. ieee ee cee eee cee ee cece ee 78, 91 
Cyanurus cristatus .22 2.222 cece cece ee cee nee ee ee 79 
stelleri macrolophus ..........-+ hese sew ses 79, 92 
Cyathophylloid coral 110, 121 
Cygnus buccindtor ..--.. 122. eee ee ven wen ween 88, 92 
Cynomys ludovicianus 1.0.22. .22022 ees eee eee eee 67 
Cystiphyllum .... 02222. cence cee ees FaQeia Reh e se 121 
D. 
DGPUG ACUI vaca wid wines nea 8oa sage teldule ees eee eee ciee 88, 92 
Daisy Dean Creek: cc23 cnssacwsee 206 ash ehww ye ceed 15 
Dana, Ey Sisceieneiacacicieniae seta aidive Baew us se eee ee oes 9,97 
Dawson, G. M., report of ......---.--...2-. .22--e 136 
DOP CHEK oe ac jsconiiscwie- de veces ge besieeeeeeces 15, 114 
Deok, Black=tailed 's s.jcj6- 2:2 sim peo acnee seeie eoeewecae 70 
Mile: 53. octwte suis oases cena Sely knee meee 70 
WO Goeie ec Aerctactrele alate aw5id eva Seen ee Me tees 70 
Wihibettailed ctncnecceed coon sexes xo. ndeias 70 
Deer Creek, White-tailed. ..-.-..-2--..--.---2---- 73, 115 
Deni CCG CWO. cae semes save cess veda eeeueeene 7A 
audubonii........---+ 26. MNS wit Dees 74, 91 
Deposits, alluvial... 2.2.2. .-.. 2-2-2 +22 ee seen ee 97 
Descriptions of new fossils ...--..--....-.--..---- 141 
Desert; [daho'cick sc cccccises deceecndseewieceseccncs 21 
Destruction of geyser craters. ..---...2-........-- 26 
Devils SUGGxc 2eoscie~ ia eeeeeseeadoeeaecan acess 18 
WOLKSHOD (as cajon cee soeweeernennsene aces 23 
DIN GSAUTS 36 auto semien Ss Seis cenaneoe ea ece eee eats 135 
DIPPel icc nciwems eeu rwainae sawseaseutaiesenaeuneces 72, 89 
Distances on Missouri River from Bismarck to Ben- 
TON Siswescedmcsekceesee Seis hashed dasiwiios 53 
Distribution of the formations.....-...----.------ 182 
Page. 
Dog River.-.-..........222..22-- Seni Upcimaddaehice 55 
Dolichonys oryzivorus .... 0... .22 cence ce eece cceee 78 
DOVG;, COMMON oe 20 eocieg wes slog ateekeeesenereeee a3 
PROTO os asad owitise e's oe cemae coke wise arse eee 83 
Downy Woodpecker ...-.........000c2ecee cece eee 81 
Drift near Missouri River ....-.....-.. fovelomeie 101, 135 
DUCK GIay sicacn.cone ccna decease esukadeorencaen 88 
PAnetail. .ciiscndaiwcivadvelcweeae tech eeeasae 88 
White-winged Surf ........0... 0.202. ----2+ 89 
DUC Creel .ts 2c ico ccdciccwen tessa wa sooo see 57. 
TOULGS oo nis srcisisieisiaiste angtcigeiacs ace eaiewms 15 
Diack Hawk. ss ciee wavs we ccink sabe sees sbaneeeneeaee 82 
DUSk yy Gren sO! 2 csecis sia vesica eae wdadeateceeeseeins R6 
E. 
Maglé, Golden .sictas hoes incalesaavecune mobs sens 83 
White-headed ...... 022-2. 2.22. cece cee nee 83 
Eastern Montana ..---. 222. 1.222 a eens cece ee eee €9 
East Gallatin Range .-.... 2-222. .2222- eee een eee 118 
Ectopistes migratoria ..- 22. 22 cee eee ne eee nee see nes 83 
Hléphant’s-Back gscccc dceued cadsxssscavawdes svees 20 
WOT ee th Saree acncelem eA eh tle eee eect el eta ato 69 
Creel Bigs jon icccinscevesad meee soe sau snaeces 57 
IG UttlG sistas ‘eulesepe avaleue mieeereraeiciee Yee 57 
TRON GOs cos ttte's atert este tes sa aoa ae aoe wakes 113 
Nis Onbscves Sosa cede ooctnas oxiee saheed see 16, 130 
TONG HUM a cine: sinteatenaie Beaches May eearoadaad deed sus 116 
Bmigrant. Peale... sccscsedcsannseeus ieaaen sacene 17, 82 
Timpidonac pusillus 20.2. cece cee e cee cee eee eee 92 
TE DOT CODON Ee oe oi nA Set anee Ade bya a die as 116 
Lremophila. alpestris leucolema....-. 2-2-0. ----20--- 74 
Hrithizon epixanthus 0.220. cece 2 eee ee eee eee 69, 91 
Buomphalus 2.220 0 ee cee cee wee cee nee eens 121 
Tiuspiza americana... 222.2222. cece ce eee eee cee ee 78 
F. 
Falco columbarius (?) richardsonii ...... 0.2222 .02+-+ 82 
COMMUNES ANGUM 22222 eee ee ee ee eee eee 82, 92 
laniarius polyagrus.... 2-2-2062 -2.0 sence ee eee 82 
SPAVVEVUNS! 20 os sce aac eee SGatlo diene ano 82, 92 
Falcon, American Lanner ....-..........--.------ 82 
Richardson’s .........-2. 2-2-2220 2 eee eee ee 82 
TU ICONIT Oe sayeics op2 ote oat «cts Ja od sata cRae cane el 
Falls of the Yellowstone .-........2...-..0---2--- 26 
LOMED ocs2 5440 eens paar 
Upper: seo vcseetecouaess 22,73 
Win Gey ROR ee ep aes 2a ger oe cps eanias teeta anes 29 
POMS Par aciocicecveidhes beatae de aeda temmerauatemnoas 105 
TRCTIAG soc cis.4 sche Re aumetnacinne meaceae Maeees aut eausaaes 63 
TUB CONCOO Risa fois iacimmee Sho oaie Olea amet es enes BS 63 
Ferruginous Hawk.....-...----.-.---+---- eee - 83 
TEGCF ZVCHAOUS oa a eintaitwince ct eee tees Boecae sees 63 
Finch, Cassin’s Purple .....----.--2.------------- 76 
GISSS 3 ya3t sed ie tece cecaceseteseeanareee G7 
Lark ......-- ase aracoial tipeavchats Gata ponent anima gp Saar 73 
DsaZOliy. castes aned qceteatecd yeekamecce ceca 73 
Pin@s ssa ucoe chee cee cota ces wee oeacon ae 76 
Firehole: Rivetiees. cose senna cece ctccwse ce seceawae 25 
Walley sc caccse ten. deccee sont cmieetegaee 66 
Mishshasvle isco: cis SS keweeeed memset esses os 83 
Flathead Creek ........---. 2-222. ----------- 118, 123, 134 
PASS: 2.55 25 sister ee corte capt laos 134 
Fleshman’s Creek....-. 222-2. ------ eee ee eee eee 57 
