30 F2. 



Plate ///. 



%e two great synclinals of Perry Courtly. 



Fig. /. 



Mrlh basin South, bujsu 



Susquchan n<y^\ 



\riverleocl 



Fig. 2. 



Fig. 3. 



Franklin Co. 



Jfovlhern basin 



Siisq. Hoer 



■v*=&t^ m 'X *■••*£ 



cool 



Fig. 4. 



Southern basin. 



m 



