290 GEOLOGY OP OHIO 



to be, on some coal horizon that possesses more or less value for this re- 

 gion. The seam cannot apparently lie lower in the scale than the Meigs 

 Creek horizon, and it may be much higher. 



This completes the brief account of the coal fields of the state 

 which was undertaken in the present chapter. A description of the 

 maps to which frequent reference has been made in these pages will be 

 found in the preface of the present volume. 



