CONTENTS. Vv 
CHAPTER LXXIX. 
GEOLOGY OF DarRKkE County. By A. C. Lindemuth.............--........+--- 496-518 
CHAPTER LXXX. 
GEOLOGY Or ASHLAND County. By M. C. Read....2.2. 02-2 -- ee we ee ee ee ee ene DLY-528 
CHAPTER LXXXI. 
GEOLOGY.ORNVAYNE|C OUND. By M..C. Read: sons. c= ao Soom scene coucle ence ==) 0ee-009, 
CHAPTER LXXXII. 
IGHOLOGYAOE) MOLMES) COUNTY.) Yr CIRC RC cee seis oracle ae elalaissiealelaie aie 540-561 
CHAPTER LXXXII. 
GEOLOGY or Cosmocron County. By J. T. Hodge..........--..------------- 562-595 
CHAPTER LXXXIV. 
GEOLOGY OF FRANKLIN County. By Edward Orton... .....-......----------- 096-646 
¢ 
CHAPTER LXXXV. 
GEOLOGY or HocKING VaLLey Coan Finip. By M. C. Read ..---.-.-.-------- 647-715 
CHAPTER LXXXVI. 
GEOLOGY OF JEFFERSON County. By J. 8. Newberry .-..-.-....-----«------- 716-780 
CHAPTER LXXXVIi. 
GEOLOGY Or MAHONING COUNTY. By J. 8, Newberry.-.-....--.---------+=+-- 781-814 
CHAPTER LXXXVIILI 
SUPPLEMENTAL REPORT ON PERRY COUNTY AND PORTIONS OF HOCKING AND 
ATHENS COUNTING. IViil.) bs) ANGLOWS, .vecsslcooslccont ce dleda cols buae se 815-882 
z 
CHAPTER LXXXIX. 
SUPPLEMENTAL REPORT ON THE HaNnGinG Rook District. By Edward Orton.. 883-941 
CHAPTER XC. 
GEOLOGY OF BRowWN County. By H. Herzer...-.....-....- Ur Em ies EO eee 942-944 
i 
