Quart. Jourii. Geol. Soc. Vol. LXXVII, PI. II. 



4 



Oenero/ Graph shefif/fxi ^^e c/zs^r/ii/f/on o/ /"oss// P/on^S //; rff/Sf^/on /o T/me a/a/ Sfia^ 

 Lohfer Cos/ .t/ec/sc/res a/ C/yafffc/i I'bM one/ (^///ac/> Gcch, G/<?n7or<^r 



J)i/ ^ar/t/ Jlarr/es, M^. ^O.S. /iorr^soonc/e/?/ V /^fl/secm o/ /fa/es.) -~~- 



oe.ON'NCt DATUM. 



600 f 

 700 1 



Sca/3ff%,i 



fOU'SCTALCS. 



LyC0P0O/AL£S. /^/l/CALf.<afir£/>/aiS/'{fM}. 'COflDAir^LM 



