Tran3.Ac.Sc.StLoui5.Volin. 



YlERTWjiL S£CTrOX OF BOlUXdS 

 AT THE ST.LOriS COrNT^" INSAXE ^iSYLTJM. 



BY G. C. B ROAD HEAD, State Geolo|ist of Mo 



No. I Strata Fomia in Well J^uTl niusiration 



lem. 



l^al. 



I 



Sac^iaroidaLSandsUme 



Fonnatioii 



JJluJV . 



Peet 



Cocci '^ieaxure* . 



Xower 

 Carboniferous. 



ChoiUeauL Group. 



Jrenion^lcLckRwer 

 unci 

 £irdstyrJjvm*itone 



T'xrstlitme»toTte . 



SecondiLunAstotic . 



Secciid. Sandstone . 



.rhircLJtim entonf 



aio 



93 



42{ 



^4S 



/33 



S^7 



S9. 



83S 



Third SoiuUtmte . 



I'hurthJjtmes tone. 



Potsdam/ Sandstone 



SS 



.?<!?-# 



^Sfi.S 



VJT 



3- 



ItardfBlixe^ChertyLimesimit. 



jcr 





. unUi aiut OnLvLuarsUmr.. 



:xm 



JSJK 



JLimestane-. 



■£bxHfiJihaz*timtraitcE SailJt: Waimr.' 

 Light antCdarklnnietttme . 





JiXU 



White and JJmtr i i Sitndtttnu.. ^38 



JiXJy 



AXVU 



"wm 



3xzr 



XXX. 



unr 



xzx^ 



JIXV 



Cluy 



' rn^^ttntt , 



ChtrtviLwietiorte: 



439 



IhxihfChertyLintetUnve.. no - 



JiarkfPra bJiimejitoTie . 



.Limesione caul Chert . 

 - '>f< ' ^ Sund:tt-f>ftiC-'. '.'. : .'. : 

 CTtert (iiitt Lfini^stane. 





Cla^ 



-Vine J7ia9£e# oJutKntettafve. 



Jhxdt.ChertrJtimerUme . 



.-^lagTtesiioLUniettarte. 



^uf^Jirown an dTMnbjTherty 



^ifr anfiJ>mh,aiert\- 

 •'MxAyiientin.Xiimjetlone. 



Sandattme. 



Feet 



JS 



I2S 



39 S 



3uf(Drah and 6ray,Chtrtr- 

 •Iftiiptetuin Limettaiif . 



^'^CagnetifinLiinettaiie with 

 some Sand . 



ytwftf^fkv^* , 



Mtig^itnanJAmestone . /^£ 



Srtndttotte. 



Dtirk, 3ftmHfi€tn .Slo-tm. 



. Vafpi etrtan Xnnvestone with 

 aennr Sand in UnrrrJitd* . 



Sandstone. 



Srotni andlird Sandticne 

 JjOirrrJir€lt Hard untt Reft . 



487 



MM- 



\2(9f 



vwin 





\»iiXf. 



371 



4t 



t/kS.5\ 



