ILLUSTRATIONS. 



Page. 

 Plate CLXXX. Outline map of the Southern Anthracite field in 



Pennsylvania 918 



CLXXXI, CLXXXII. Section in the Sharp Mountain gap at Pottsville. . . 

 CLXXXIII, CLXXXIV. Section of the Pottsville formation in the Lincoln 



mining district 918 



CLXXXV. Sections of Locust ^Mountain at Tamaqua and of 

 Sharp Mountain at Rausch Gap, Schuylkill 



County, and at Lorberry Gap 918 



CLXXXVI. Sections at Fishing Creek Gap, Black Spring Gap, 



and Gold Mine Gap 918 



CLXXXVII. Sections at Gold Mine Gap and Rausch Gajj, 



Lebanon County 918 



CLXXXVIII-CXCIII. Figures of fossil plants characteristic of the several 

 paleobotani(! zones in the Southern Anthracite 

 field 920-930 



20 GEOL. PT 2 48 ^'53 



