STRATIGRAPHICAL ORDER. 89 
item bt 
Limestone—Ames (?), reported. 
COnNCe al CA ee ee Menon nen ae ear eclacuocelt ences cossecssecesesseseet ee 68 
Coal—Anderson S€AM...........sseceereseesees 9060000 woc090000 oopEDoC0NAOCOoSOK - & 
STII eT EX6 hess Sodccinbactou DaOaC HORE aR UOBEDUR BOAO DCO ncone see olteeh vescoaes cee ee ss 10 
JU Spf RAID BOBO SING §22)-5500600000d00060000000 . 80080000560 000508000000000008000000000 4 
Minesclaygandoredighal emacs csace-weusccchsceecaanaceseee wscceesssesceeees 15 
CWomcealeder nic.) vetescccset ste cee Hi AOR eR CO SEE BECCA R CRCE TEED 20 
Samderockem Meavaval (SECM) herrerseseeccer ease omcoscccesiscasioceccsealecsecsees 25 
Black slate, highly bituminous with marine fossils..................+6 5 
Coal—Brush Creek, Salineville Strip Vein ...............sccceeeeseeeeees 1 4 
WO COALS ers retrace tear ce anemia e aecuesiuahidceacueiesleietcaeasaedbeas 25 
Sandstone—Mahoning, Conglomerate ..................scceseseesecesseeees 26 
Black’ slate; with Seams Of 1rOM OFe .... 2.26. .......corenececcoseverecnrsooces 6 
Coal =sWippercWree POLrt eecetess ee <ccececeee-s occ ssc cace deni sabcocecccssoeices en 3 
HE aC ay gene tar ste tease eatecasare sees on aes Sasiavisloatseclais ws osietc eitinlees nee caaaaeisa cies 1 4 
Co alle oe eae a eesti ee ones Secs oMaWs abesdieseaeeccsecdeeseietesies, saeestcs 2 
Limestone— Upper Freeport, in adjoining farms. 
The Cambridge limestone is here 127 feet above the Cambridge 
coal. : 
On the east side of town, along the valley of Leatherwood Creek, 
and on the line of the Baltimore and Ohio Railroad, there is found one 
of the finest and most largely worked developments of the Cambridge 
coal. A number of large mines are in operation here. At Wm. Nor- 
ris’s mines, section 4, Center township, the following section was ob- 
tained. It can be duplicated on all the adjoining farms, so far as most 
‘of the elements are concerned : 
Feet 
UG UNESIONE—— MINES CLIN OIG Ale ccce. couwccissssccncoeseses che cepes sesetecessssasese's ee 3 
ImpernvalsmrostlysconCealedy.oiieccc.ccccsesrcencslscacescssessisewesclecescutee sees 107 
Coal—Anderson, blossom. 
Sliglesieceancancuns ase Meena ciaaent, wea ecules eueneindvenacedile suessseees.cicedoesst 10 
lnmestonc—Cambrid Gey (UMiversal) s-ceccssccccecceesee nce cocesececes se aceeeonet 4 
Imtenvalkiconcealediiese esc. 8 as cececstcws sess scieeeecnwcndivse sheets at eecaseeeens 115 
Sandstonc—— MA ONIN (SCOM)sarssenosestcocacs ones een ccecebesetcseineccestacbaats 20 
lvalern lta enensencers none sccaseas carers sttsnsisce lansetvasls cube seiies seleesentailseresseessess 1 
Coal—Upper Freeport, Cambridge seam, 3 to 6 ft............00 CBE onnCre 
Inmestone—U pper Freeport. 
The interval between the Cambridge limestone and the Cambridge 
coal here measures 136 feet. Throughout the district occupied by this 
seam, this is the usual interval. Sections involving all of these elements 
in the same order and relations can be multiplied indefinitely, but those 
