960 GEOLOGY OF OHIO. 
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SECTION FROM THE BOWMAN BANK 
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The next exposures of the seam to the north of those here named 
contain the normal seam only. The change from thin coal to thick can 
be well traced in this township, and it agrees entirely with the mode of 
change reported from the other portions of the field. It consists in the 
superposing of a new coal seam upon the normal seam, but the latter 
is often slightly augmented in volume and somewhat improved in 
character when it is thus covered. The Baird mine must be very near 
the line of division if, indeed, this line is not to be found within the 
limits of the furnace property. The warrant for expecting the change 
very soon is found in the following section, Fig. CV, which was taken 
in one of the entries of the Furnace mine at its northernmost extension: 
FIGURE € YU 
SECTION FROM BAIRDS COAL MINE 
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