ILLUSTRATIONS. 
I.. Maps. 
ancockvand Adiacenta Co Untie seer eae el reiene orien eee en OE 
Atlen-and=Adiacent Countiests.. oo eae aoe eae ee eee (ae 
Central ROhiow Naturale Gace hicld cima ich creer narra ne aera 102 
Western Half of Washington and Adjacent Parts of Morgan and 
Athens "Commtiess As atin da. 8 2c hosle ate ere eo CE ee Ea) 128° 
ine wasusan Inlalh; Or Werslairaeaworn (COrlaiy. oo055000000c Pa teen nee to 154 
Monroe County pe Nah GALT, all OF i IGA Oa TO a an 194. 
Belmont Gotarity: 2. oh eo tase ing cron eer Oe eee re Tee TSE et at An 214 
exten ATE ISOM © OUI bYe * essa ays cttereete ate Arak teta le Hin Wee bate eh re oan aT ee ee Oe 
Jefferson | Cotlnitiyic’). Ga Sid dae he ie ips cee erie a aegis 244 
ikeeelatest 
Sections Showing Position of Trenton Limestone........... Ae, scenic 70° 
Section Due Hast from Lancaster to the Ohio River... >. 5..0...... Pipeeks -ileA0) 
Whey On Conlon he Black Jelenvals oocococnc00000 000000000000 000 198 
Macksbute rin 190380 woes om Sie eras oe Oe er tie bo tlal orien SRO Cn nara 155- 
Scion During: the Boomus eek oe otek ee eee eee 234 
View of Berea Grit......... ae sean Pine ees 6. 304. 
