78 GEOLOGICAL SURVEY OF ALABAMA. 



seen, did not approach close to the base of the Clinton ridge. 

 Some limestones, which did not posses its characteristics, 

 were seen near this place, lying between it and the Clinton. 

 They were assumed to be Trenton limestone. If this is 

 correct, then the depth of the Clinton, before reaching the 

 fault, is greater here than in any other part of the valley. 

 And its ores here will reach far below the water level, 

 while in many parts thit have already been described they 

 scarcely reach to it. 



A section through the Clinton, shows at the Hullett gap r 

 the following measurements : 



From Black Shale to base of 5th ore bed, 175 feet sur- 

 face measure. 



1st and 2nd beds not seen. 



3d bed solid, first-class ore 9 feet. 



Rock, and earthy material 50 " 



4th bed, limy ore, dark crystallized 5 u 



Shale, and probably rock 15 " 



5th bed, soft, fine grained, dark ore 14 " 



Lime-rock. 



Some doubts' naturally arise on the classification of the 

 ore beds at this place. That they stand, as here shown, is 

 self-evident. But if the one marked 3d be really the 3d led, 

 it carries here an ore very widely different from what it does 

 elsewhere. The ores of the 4th bed are also different from 

 what it usually carries, and partake of the character of the 

 fifth bed. Yet we must accept their position, and anomalies 

 here, or assume, that the 3d bed has disappeared and that 

 the 5th bed has been divided and the two parts separated 

 by 15 feet of strata. This would tend to harmonize the 

 contents of the beds here, with what obtains elsewhere. 

 But we have as yet, no facts to support this assumption. 

 And hypotheses, or assumptions, unsustained by facts, do 

 not pass current in geological investigations. These doubts 

 must therefore hold till farther development places aditional 

 facts within our reach. 



The ore of the bed marked 3d is mainly linticular with 

 occasional round grains, dark brown to blue steely grey 



