THE LOWER COAL MEASURES. 277 
Rt Ta, 
Sandstone. 
Shale with ore nodules..............sscscccsssesccoees severe rscsereesseesesceeees 4 
MLO CKMONC Meee eee ee eens eae Sele alers Walelaee dalsie scles ssesclenieceseesiececeseessese 3 
SCONE PIMECOM Cuaron ere aact ec atains Seca sete toatesecssessives sceeecmeeereseass’e 2 
HO Were MiercenliimestOMe pesecese cc steccoctcccecessecesscsestceseciecrseccesee ses 10 
ILA TE WIGREEP COE Mos 0460e190000000000060000020000000000080000000 COOCOS COOTONGOGO0 4, 
Fire-clay. 
Snalle, wrt Taille GF OR G5 [OLWOL5.000000e600000000000100000.009000 400000060000 Treks 
STAMINA? SETAC 200009000000000000000000 366000600000000000000300000000000800 000000 See 
WOnCE al CUR eons eoe net on recess eceeeenesuacccneesebevesseselseccececesececetes 1 4 
lbaryall ot lox, TASTE TO, TANET 2 .96500000000600000600000002060000900000000000 650000000 3 
FLEURE LRA 
SECTION AT IRON BRIDGE NEWCOMERST GOWN 
Sancistovre mere rs eek gyegs yee OR) Ser aa 
Shales with ainles amc plates. of ¢ won Ore ps 3---4! 
Block Ove WEED cle ad Phat Bs sa bs FD " BiApers Ware rn tare ——— it 
Lower Neveer Limestone -----~----— MME. 3. 
Lowee Mercet Goal -------—------ w= nassecee <0, 
ese cla on SS OS se i Ger — ap \\ Yes 
Shale with ove nodules(lyer of eu | se yaeertaonany Ny \3. we 
Shaly. Seine SCOT Ue eae eae ea ii Rwver G4 ‘ 
Another section is found near Suydam’s lock that includes more 
elements. It is as follows: 
Ii, 10} 
EGC JkaiREeraMITAysS EEL (ANI@s (©))660000008000008000000000000000000000000000000 3 
NG eRV aliens lace cei ataia sececenscgsstesseedee’ cusesabecdeat seetessegeusseeses 62 
Butnanmllil HorGrayslimestone@rsccccieccciectscocssstoccccecce cosas eee 3 
Brookville coal (No. 4), thin. 
NES TV al necee te eeocecis cc scceis cseae, oven conviscseneneoesesceescbewosiecess quis ss 374 
Tionesta (?) coal, overlain with sandstone .............ceecscoescssscoores 1 
JEN FET VEDI Leodocagoocosobonencsdose sacontecRiCCORCA SHORE Te CcA OSCE eC EE CEee TenEn Hees 13 
Upper Mercer limestome’:.....5.....0cc0.000cscosescosceces Ri Sseeuiaccres Ri ceserod LTO 
Upper Mercer coal, thin. 
Mntervalecocsecscosesecen sates sasevdcsscecseacdscvetecscsccoacetess esses cocconecccs = 
Iowerg Mercerslimvestonsyancccccsccctucccessssstescseses soscssicsss cece’ vosne ses 36 
Lower Mercer coal. 
A still longer section from this vicinity is shown in Fig. XX. 
Few additional statements are needed in regard to the coal. One 
peculiarity of it, in part of its extent, is the reduction or occasional dis- 
appearance of the lower bench of the coal and of the overlying copperas 
band. In such cases the thickness of the seam is correspondingly re- 
duced. Where the seam is thus reduced, it generally measures 28 to 36 
$ 
