228 INDEX, 
Page. Page. 
Cassidulina crassa D’ Orbigny, description of.........-.------+-+++ 128 | Discorbis auracana (D’Orbigny) Cushman, description of. ......-- 135 
Charts for stratigraphic computations, preparation and use of. 44- auracana, plate ShoWiNg..........-.+.ceee sneer eee e en eee eee 149 
45, 45-46, 48, 49-50 bertheloti (D’Orbigny) Cushman, description of.......-..-.--- 135 
Cheyenne sandstone of Kansas, flora of, age of..........--.----- 204-206 ” plate showing .....-.-.----0++.+seseeeee eee er ere ece errors 149 
flora of, climate and conditions of growth and embedment.... 203 byramensis Cushman, n. sp., description of. -......---....++-- 96 
descriptions of........2...22--2seceeeeceeeeeneeeeeeeees 207-224 plate showing......-.2.-+2---sesc-eseeeecee eee ee eeeecees 113 
early Work ON .......2.02.00ecceeceecceeeeeceeeceeeeeeeees 200 | —_ orbicudaris (Terquem) Berthelin, description of..........-.-- 96 
Tea GATES Of soy-persenecrsestercedeunan oanai ised eot Aenea 202-203 plate showing...........0--2+20+ene cece eee eee eee e ec eeee 113 
stratigraphic distribution of...............----eee-eeee eee 206 | Distance to a stratum, method for computing: ain cinhiuietciararciat seine 46-48 
fossil plants from, plates showing...........----.--+ erated 225 | Dome Rock Mountains, Ariz., plug of latite in, plate showing.... 185 
‘invertebratesiin we. cowie cceemed avin sweciccsinaeceionnemesseecinas 199 7 
localities in, from which fossils were collected -.-.....-.------ 202 " 
mechanical analysis Of.........22.22-02-eeee ee ec ee ee erence 203-204 | Eagle Tail Mountains, coloration of rocks in........-..----------- 186 
microscopic examination Of... ......-.00eeeeeeec cece ee eens 204 | Ehrenbergina glabrata Cushman, u. sp., description of.........-.-+ 93 
DAT RIC UL. caniwndeennacesonsansaues Renal nh a eee aS 199 glabrata, plate showing. ........-.----+--eeecerenereeeeeeereee 111 
Chinle formation in Utah, features Of.........-..0-+--2eee-eeeeeee 62-63 
near Springfield, Utah, plate showing.......-....---2.2--++++ 62 F. 
Cinder cones north of St. George, Utah, plates showing.......---- 66 | Feistmantelia oblonga Ward, description of........-.----+++-+-+- 222-224 
Cinnamomum membranaceum (Lesquereux) Hollick, description oblonga, plate showing........-.-.--0-+-2ceeeceeeceeeecececees 225 
Of seisiciads 2a sees Seeweeenmeee are tes ceeaeeanes sees 174 | Ficus daphnogenoides (Heer) Berry, description of.............- 163-164 
newberryi Berry, description of. 173-174 daphnogenoides, plate showing we 181 
plate showing 181 glascoeana Lesquereux, description of.........----+++- Saaedisiys 164 
Cissites formosus Heer, description of..........- 170-171 | Foraminifera. See Cushman, Joseph A. 
formosus, plate showing ..........-.---.e-e+0++ - 181 | Fossils, from well borings in the Bend series, Texas...........-.. 16 
Cladophlebis dakotensis (Lesquereux ) Berry, description of. 207 occurrence of, in the lower Gila region...........---...-+- 2. 189-190 
Clanton Hills, Ariz., limestone composing......... 188 . 
Clavulina byramensis Cushman, n. sp., description of 92 G. ' 
byramensis, plate showing 110 
Coalpits Wash, near Grafton, Utah, panorama along east side of, -| Gabb, William M., cited.........+++-++----00crerrcecteteten tests 27,38 
plate showing 59 Gaudryina triangularis Cushman, description of 127 
Coconino sandstone in, Utah and Arizona, features of. 57-58 sp. ?, description of. . et 
south of Hurricane, Utah, plate showing. - . 58 Plate ShOWiNg.....---+2--+-200ee000007- _ 
Coluten primordialis Heer, description of....... _ 168 Gila, lower, region, Ariz., basal: complex of, age of. . 
Computations, graphic, facilities needed for . 39-40 ne oe classes of rocks in....... 
aphic, publications on............-- iio daamidlaiees sssts ee 380) SRE Are cr nee feet ae 
tea, disadvantages of........... ~ 4 Jeasiemetamipee need sediments i = 
Computer, trigonometric, advantages of - 650  metantorphoeed ie Gl srCeD TORE EB aie 
piety EEC! nee B mature and distribatian Of.«. ....u.causee mews eeeeeneses 
ee a | ee ee 
Coolie, ©. Wythe, atte... ne comacerer saree S| | ee 
Orthaulaz, a Tertiary guide fossil. .........-----42--+2---200++ 23-37 geologic map of... 
The Byram calcareous marl of Mississippi.......... --- 79-86 intrusive rocks in. .. i 
Cornophyllum vetustum Newberry, description of.......- - 7 mineral deposits i0...........0.-2-0-eeeeceeeceeeeceeecececeee 
Cornuspira involvens (Reuss ) Reuss, descriptions of...-.....-... 101, 140 Paleozoic and Mesozoic events in 
involvens, plate showing.......-..--+--+0-2e0eeee ee ece eee eees 119 pre-Cambrian events in........... 
Court House Rock, Ariz., description of. 187 Quaternary basalt in. ‘ 
Cragin, F. W., fossils determined by........---------+22+--e-+-0++ 155 Quaternary faults in. . 2.22.02. 2.00.00e0leeeeeceseeeeeeeeeee na 
Cretaceous (?) sandstone in Utah, features of.......-......-- renee 65 Quaternary history of 
Cretaceous time, sequence ofeventsin.............--......---- 201-202 Quaternary sediments in..........2 2.0.0. 2.2020e eee eeee eee 
Cretaceous (?) variegated shale in Utah, features of............... 64-65 rocks of, variety Of... .....2..0.20c20e0ceceeceecceceeceeeeeces 
Cristellaria convergens ? Bornemann, description of. .............- 130 situation and development of. Deh ek ee eay tee Oe res 
cultrata (Montfort ) Parker and Jones, description of. .-....... 130 Structure Of . 2... .ccccecccecteccccecececececucecceuccuccecs 
plate showing 148 Tertiary history Of. . 2.2... 20... 2c0cceeeec cee eceeeeceeeecees 
rotulata (Lamarck ) D’Orbigny, description of............-..- 130 Tertiary sedimentary formations in, features of... 
plate showing ........+--.--+-------ee ee eeeee ee eeataveceee 149 fossils in... 20.022 cece eee e cece eee e eens sce eee 
vicksburgensis Cushman, 0. Sp. description Ol icierccerteis eres, 130-131 nature and distribution of 
plate Showing -........02.0ee-2eeeeeeee eee ee nee e eens 148 Tertiary lavas in, nature and distribution of............... 
sp., description of 93 | Girty, G. H., cited.....- Boleedidig 
Cupressinorylon cheyennense Penhallow, description of......... 212-213 fossils deteimined DY.oeccetactsecactese ended 
Cushman, Joseph A., The foraminifera of the Mint Spring calcare- Glauconite, occurrente of, above stratigraphic breaks -. 3-4, 20-21 
. ous marl member of the Marianna limestone....... 123-152 | Gleichenia? bohemica (Corda) Berry, description of. 208-209 
The Byram calcareous marl of Mississippi and its Foramin- bohemica, plate showing................-- 225 
UCP nc seaeen see Ss cneeee sess socessee ieee eeweecess 87-122 nordenskiéldi Heer, description of.. 208 
Cycadeoidea munita Cragin, description of .......-... -. 209 plate showing 225 
Cycadeospermum lineatum Lesquereux, description of........-.-- 209 | Globigerina bulloides D’Orbigny, descriptions “of. oe 95, 134 
. bulloides, plate showing. -..........-.-.---- 113 
: dutertrei D’ Orbigny, description of. . 134 
Dakota sandstone, use ol Perit... cnc cee ewnsenmernnwomomms 199-200 triloba: Reuss, description Uf ois. scccncisccssiuvcsvesergncngeees 95 
Dall, William H., cited ........-------0ee eee ee eee e eee eeeeee 23,27, 29-30 | Glyptostrobus gracillimus Lesquereux, erroneous identification of 209-210 
fossils determined by Goldman, Marcus 1, Cited so0 cess wornseaw ees oueeweraneeedens 203-204 
Denison, Tex., fossil plants collected at..........-....seeeeeeeeeee Lithologic subsurface correlation in the “ ‘Bend series” of 
Depth to astratum, graphic computation of...............-...+-+ north-central Texas.../..........+ Wea dae caweeraGneeee 1-28 
Dewalquea insigniformis Berry, description of. Gonzales Wells, Ariz., plate showing. ......-......sesseeees jatnesiaiena 184 
Diamond Valley, Utah, section on north side of..........-.- e Gypsina rubra (D’Orbigny) Heron-Allen and Earland, descrip- 
Diospyros primaeva Heer, description of.........-..-+-+-++2..++ HONS Of ssc cwaciseveiesdiestesmetesnesicnacsconesets 98, 138 
primaeva, plate ShowWiNg..........-0-2-+-2eeeeeeeeee eee teeeee rubra, plate Showing. .........-.-22--2-220eeeeeee seen eeeee eee 116 
