3ULL. GEOL. SOC. AM. 



VOL. 10, 1898, PL. 12 



^ 



^ -^*^ 





■i 



\^. 



Ax* V, 









_> 



ANTICLINE AT THIRTYMILE POINT, NEW YORK 



Portion of level uplirted liKirk shown at left of anticline. Lower part of ovei'turned fold j^hown 

 in upper right-liand corner 



