,^s^ 



/■' /• /•/ 1//;/ /•• 



iiiul «'iil\ liy supplcmt'iuiii!', llu-u- with llirir in;iriiu> n']MTS(Mltalivt\^ 

 o\ \\\c l''K>riiln, rcj'joii i.in ihc nilirc siulion he tlcnK uiulnstood 

 Thus tonsil luli'd, llu- M-ttu>ii wtMiKl lu': 



Auiiiiiiiii Misctewiin'i 1 u-iui.i 



I tJrniul (iulf I 'ranip.i 



Oli.mHiMU'; \ ()('(( la \ Cli.iii.iluon hrc 

 i \ioksluM"g 



I Jav~ks(>u 



I- ( 'l,lll<>M III- 



I M\>l\v,i\ 



I'hi- th'iH^sits as a whole ,iu- ihosr ol m.iiiiu' waUMs .ih(M n.iliu!', 

 with rsluaiinr .mJ lu".l\ w.ilri itMulihou;., ,iinl ihr l\n.sils iiuhiaU^ 

 iimloiuiK .1 warm or suhliopiral Inuprraluro o\ walci.' 



rh(- liini' u'lalions ot \\\c \arivnis mi'inheis o\ (hi-sr ''roups e.in 

 lu' hrsl in.uK- oul ui su* h ,in aii\i ol .ipp.ii i-ul 1\ riMiliuuous St-ili 

 incnl.Kiou ,i-. ih.U KmuuI hi this l\piral .in-.i, l>ul whrn, as in ihis 

 vase, .1 ■.nul\ ol Hu- I. inn, IS t>l ihi- \,iiions niouiln-is inihi'.il(~ \\\ca{ 

 physir.il ehani'.rs niWi xs-nni;' InMwis-n ihcni, luilhci (-\i*liMUi> ol 

 SU( h * h.ln!',(-^ IS (o 1h' lookcil loi ni (he cxlrnsions ol ihr iK"posits. 

 Somo iiupvMlai\t i-\idcuro ol il\is rh.uarin is lo lu- Knnul in ihi< 

 Texas Mc>\iean levjou l^l''i}.\. iV 



TKI' l'ACKOl'8 rt'K n \K\ UVKKIKU 



Tii'M lo thi- *h-posilion of the o.uHo-.l I\Mli.u\ sevHnients in 

 ihf. .UiM lh»- ( 'lel.u isni'. lOvk-- \\.\A Iuhmi ;-ulM4~t li^l to xnK-.inisni, 

 U^Khn;\. .uul sMosion khe-.o n\o\i'nu-nls hr!',an duriu;> ihr poiioil 

 ol iho \ushn ("h.ilk, .il whi^h lin\t' ,i b.inior v>l sonvo sort was 

 v'UWU'vl in \\w \ivinii\ >>l iho S.ikulo .uul S.ilMuas fi\'tM's in noilh 

 msttM^n Mexico whuh loimod lh(- ho;',ninin!', ol whal h.is lu-rn caWcA 

 ihr Kio Cin\l\<lo v-nih,i\ m^-nl W^ [he noilh o[ this h.iniri iht- 

 svuv-0(\ling Crtn.uH^nis so^htncnts avo kui^oly oku s .uul ,->anils awA 

 '\\\c\\u\c the v'oal 1h>1s ol" tho Rio (irauiU^ ro^iou, whiK- to \\\c Svuiih 

 wv- Uuil vMiU .1 !',u\n ihioknoss ol bhu" auil hkuk shales. V\\c hods 

 [o the north arc liwjuontly vory t'ossilitVrous, while the shale heds 

 are, so tar ivs kno\vt\, practictUly dostituto i>f an> trave oi lossils. 



