Vill ‘ LIST OF ILLUSTRATIONS. 
Facing page 
Prate XUL.—Geologic section, north side of Bull Lake Fork.-..--..--------- 248 
XLI.—Bull Lake and section ----.... ---- ---- -----+ ---- ++ +--+ -e--0:- 249 
XLII.—Geologie sections, vicinity of Red Cation.....----------------- 250 
XLII.—Canon, North Fork of Little Wind River..--- sh ae chen Se ee Bey) arr 
XLIV.—Geologic sections ..-. .----- ------ -----+ s2- 222 cece scene ee eee 252 
XLV.—Panoramic view and geologic sections ...--.------------------ 253 
XLVI.—Wind River Valley and Togwotee Pass..-..-----.------------- 255 
XLVII.—Profile of Upper Wind River Valley ..------------------------ 258 
XLVIII.—Wind River Valley-..--.----.-------------------------------- 260 
XLIX.—FiG. 1%. Orifice of Ancient Spring. Fic. 1». Section of Ancient 
Spring. Fig.2. Arch, Warm Spring Cation. Fic.3. Section. 267 
ACCOMPANYING S. H. SCUDDER’S REPORT. 
Map of Tertiary Lake Basin at Florissant, Colorado ...--.-.------------------ 293 
ACCOMPANYING A. 8. PACKARD’S REPORT. 
Page 
Fig. 1.—Limnetis gouldii...-....---..----------- o-oo ee eee eee eee eee 299 
3) — I] Li TMOINS WADCOKONERHUIS) cococs so5G50 coco suatos soooeo soso S45 coed HONS 300 
3.—Front of head of Limnetis mucronatus, &c..-.....-..--..----------- 301 
A. bimneune) (ORO WAUIEOME) 64 sosobe be sodE Gosaas Hoe ocoGued coo60d 4 ae fame Mies het 301 
5.—Limnetis brevifrons, front of female ......--------..---- ------------ 302 
6.—Limnetis brevifrons, outline of shell, &c...--...---..---.- wa aaeleuee 303 
AS eulneain, CaeOeMG cos so5s60 cd5440 God650 cob ho daSsd5 Bagg 550080 accs 304. 
8.—Hstheria compleximanus) ------ 522. 2... 2. c--- ome eon neem ene oe = 306 
9.—Estheria compleximanus, hand .........--..----------- +--+ s---+---- 306 
TOAD NCHA MOEACATE Coo cn6 Sees cabo cddo cob Gon HOGoou DoSccE SS55 CsESe0C06 308 
iL —Joistlnerelay, \wellitiemen oaS5 cash oda sacasooSasud Gobo dhbncoscSsbSSco0 oSsece 309 
112} DUNNE) TOMER 6 oSe G5 dob S65 Ghod codeoo Gd coun boSd Sacdos eediags coooss se 310 
13 ——WimnadiaamMerleama ese hesae cee nein sreereeseislels ciao oaie a faratata eter aietee te 310 
14, — aoe hey APIS Coos c46o6as Cogan soon5d coon coDo Goades Sdn don56s< 311 
1b Hullo Kohes Croll Ph obi ate ods Fano Seb obS aoe a bodses oneSeo Sooo SsS 314 
IGNOU) Clowar boven ANE ee ee BAA Ae BAe RS Goub adda oodo Good 325 
Ie Am Lemay Ona Cl Sye meme eemiee nel ssisla Sere nia clamins seksoe eee ele eee are 330 
1eF——Arbemiayeracilisys sje = lene =)e aa )eoeiele nisin aia Sond sone bose nod 331 
19/— Branchinectacoloradensisner soca eee aneee eee ee ee ee ee ae eee eee 338 
20'=Streptiocephalus}texanusiee ns seseen cece sce ee eee eee eee eee eee ee ao 
ik—-SuLeptocephalugmseali MNeadme = anise renee ease aeons ee eee - 348 
2Qo'=Chirocephaluspholmantes sete 2 oe sce Say joeec cle sae ete ee eee eee 352 
25: haMmnocephlalmssp) aby UIcUs eee hese yee ele ee ee a ae eee eee 354 
DACA Avelyn feat ence esis eieichannis a Ste sche Sere ioe err ane Se Sere ere ee ae 358 
2Os— NeCtIOMIOLAPUS A: Soee eae ek caece Scie Roel | We eI eS ae irae 361 
26;——SectiomoreApug se eer eee cero ae ae Bees Base Sais aN Pee 390 
27 eT Ey eyes OEMS) Ow MIOINE saceo eas beeGboUsUe CoOaCe poboes Sseobes oe) AOA 
28.—One of third pair of limbs of Moina ............-- i aaah, maak Neeser at 405 
29s Man dibblerofathre lol store ss is oe yas 2) a Sh ade TS in ey Ea - A06 
30. birstrame seconds maxalliiasomlobstereseriee eae see eee eee ’ 406 
ol:——hirstimaxallipede of the) lobsterssseesc 2 eee nee sees eee ee ee 406 
32; second maxillipede othe Tob steree ns = se nyce cine oo eee ee 406 
Sos hindamaxdilipeder ot thelobster =. 5 see sees eee e yee nae 407 
SAL NECLION NUN TO UGA US eases) eee ey rele eyes ek pete erase ea on nea pe 409 
Sos Maxill aOt lobsters sas specie reales ee ss Sats trols opt ae a iawn ef ea 409 
TOSCO WOW TING NTE oS) soo5 aoo5 dogo sua bobdoe oS eSs cass aode ae Le 409 
37.—Section through the abdomen of Limulus .......--.-. 2-502. 24. 22.2) 409 
38.—NSection through the head of Limulus ---.......-.-2-2222222 2222. ee A410 
39 —Diagrammatic section through hypothetical Limulus-like form ..---. 410 
40.—Section through a trilobite (Calymerfe) .............--2.----1.-22.-- 410 
41.—Longitudinal section through Limulus.................-..---------- 411 
42 Nauplius or mimmadia berm anny sesjae alesse ae ere eee AST 
AB =I Denne) Oit IbitsabneXeben Invan yeu bay Coe e a be boeo ase oddaddoe boeoes soos es 416 
A4°—— Nap lins orp Apus)cancritor mais 2 ceye aie) so scien aba eee 416 
AS: Nauplinsoriepidunuss..2 220222 252 oic oes ce ee eee eee ~ 416 
AGL Nohenaeetel IehAve) Obie) OMe ooo Gob 5 Goes abba eee GooKes Soba boe lo 417 
A7;—Nauplins of branchipus)staonalis..022 224000 ee 417 
48.—Male frontal tentacle of Chirocephalus holmanni, B. Eubranchipus--.. 424 
49.—Female frontal tentacle of Chirocephalus holmanni, B. Eubranchipus.. 425 
50.—Left clasper of larva of Streptocephalus texanus.....-...---...-.---. 427 
