- ( 54 ? ) 
of them a Bt tt^ of about fhe thicknefs of a Crown 
Piece. 
XIII. A black Subftance, called the Dun-Row-Bat. 
XIV. A hard grey Iron Oar, called the Dun-Row 
Iron-Stone. . > # . 
XV. A blewifti in which the following Iron-Stone 
lyes, called th z White-Row. 
XVI. A hard blackilh Iron Oar, lying in final! No- 
dules, having between them a white Subftance * and 
from thence by the Miners called the White- Row-Grai nr , 
or Iron-Stone. 
XVII A hard grey Iron Oar, wiih fome white fpots 
in it, called the Mid-row Grains . 
XVIII. A black fiffile Subftance, called the Guhlin- 
Bat. 
XIX. A hard blackilh Iron Oar, with white fpots in 
it, called the Guilin Iron-Stone. 
XX. A Batj in Subftance much like that of Numb. 
XVII!. 
XXL A hard grey Iron Oar, called the Cannoc , of 
Cannot-Iron - Stone . 
X'XII. A Bat , fome what harder than Numb. XX. 
XXIII. A dark, gray, hard Iron Oar, called the Rub- 
ble Iron-Stone . 
XXIV. The Table-Bat , next under the Rubble Iron- 
Stone . 
XXV. A coarfe fort of Coal, called the Foot Coal. 
XXVI- A black, brittle, Pnining Bat. 
XXVIL The Heathen-Coal. 
XXVIII. A Subftance like a coarfe Coal, but by the 
Miners called a Bat 5 perhaps becaufe it does not burn 
well. 
XXIX, The Bench-Coal 
XXX. 
