JZS.G-eologiccbL Sxwvey. 



I*lcde TjTYT 



E ' 



7 8 ^ 



Fi^Tvres refer to Se-cHori/ JVo.Z9,-paffe 6&6. 



^OLstworci-to Thanxa^s'FcfrltO. 



KD.O' 



