OF ARKANSAS. 71 



These sandstones with vermicular (fucoidal ?) impressions on the head 

 of the Cadron, in the extreme south-western part of "White county, belong, 

 doubtless, to the geological horizon beneath the lowest workable coal. 



A remarkable dislocation of the strata crosses the Cadron in the vicinity 

 of Goodlow's. Where I examined it, on the south bank of that stream,, 

 the tilted slabs of sandstone lie at various angles, from one deg. to 26 deg. ; 

 at one place, even at 50 deg. Yet the belt of disturbance is quite narrow, 

 not more than six or eight feet, and some of the broken slabs of rock appear 

 as if they had partially slipped into the yawning fissure and become 

 entangled in the closing of the gap. The course of this disturbance runs 

 obliquely across the bed of the Cadron, with a slightly curved bearing, 

 south south-west, and forms a kind of artificial dam. This rupture of the 

 strata can be traced for three-quarters of a mile. In some parts of its 

 course the fractured layers form a complete arch, dipping both ways from 

 the central axis. 



Some attempts have been made to discover ore, by sinking pits adjacent 

 to this disturbance ; but without success, at the depth to which they were 

 carried. This axis of dislocation may possibly be connected with those 

 subsequently observed on the Palarm bayou, since its course, if produced 

 in a south-west direction, would extend to that region of country. 



High cliffs of sandstone of the same geological era, appear on the south 

 side of the Cadron, near the western confines of White county. 



The Searcy sulphur water of White county, was tested qualitatively at 

 the fountain head for its principal constituents, which proved to be as fol- 

 lows : 



Small quantity of free sulphuretted hydrogen. 

 Bi-carbonate of lime. 

 Bi-carbonate of magnesia. 

 Chloride of sodium. 

 Chloride of magnesium. 

 Small quantity of sulphate of soda. 

 " " " " magnesia. 



This water will act as a mild alterative and laxative. 



It should be remarked, that solution of acetate of lead is darkened more 

 by the water after being boiled down, than when fresh from the spring ; 

 for this reason, I am disposed to believe, that there must be some portion 

 of sulphur combined with some organic principle ; since the free sulphur- 

 etted hydrogen would be expelled by boiling. Besides, the fresh water 

 does not affect acetate of lead as much as the sulphur taste would indi- 

 cate. 



