ON THE STOCKDALE SHALES. 



727 



* * * 



. >i 





•2 ^tMBP 



CD 





■S 5 M-g 



&cS 



C r5 ^ 





2 i f I 



CO M CV. ,tJ 



*- -^'^ S "2 ^ 



o d o 1:^ ^ d .S 





be 2 



II' 







li^ 



oil 



o . 



^ _r ,„- ® 3 d 

 o o a>- 



O <4-i 



