342 



COUNTY AKD REGIONAL GEOLOGY. 



The annexed diagram, (Fig. 27), is intended to illustrate 

 the section just named, together with the measurements of the 

 shaft : 



Fig. 27. 



The bed of coal represented in the foregoing section is 

 the only one worthy of the name that has yet been found 

 within the whole vertical range of the Upper coal-measure 

 formation. Besides the opening of this bed by Mr. Harader, 

 near his mill before mentioned, Messrs. Barnett & Smith, Mr. 

 Thos. Nelson, and the Drs. Rawson, of Quincy, have all 

 caused the same bed to be opened in the valley of the Middle 

 Nodaway near that place, and the last named gentlemen 

 have also caused the same bed to be opened a couple of miles 

 farther down the valley on section 15, township 76, range 35. 

 The bed of coal at all these points varies from twelve to 

 twenty inches in thickness, and these are the only points thus 

 far known at which it has been exposed within Adams 

 county. It is an interesting fact that wherever this coal 

 bed is found it occupies a position only a few feet above the 

 water in the river, showing that the general dip of the strata 

 is exactly coincident with the slope of the stream. The 

 dip is so uniform that the same bed may no doubt be reached 



