192 THE IRON ORB DISTRICT OF EAST TEXAS. 



the southern field, although it is separated from that region by the extensive 

 bottom lands of Kickapoo Creek. The ore found in this area has the same 

 general characteristics. It belongs to the same buff' crumbly class of ore, 

 has the same thickness of between two and four feet, and lies at about the 

 same general elevation of about one hundred and forty feet above the creeks. 

 A specimen of ore collected in this region by Mr. G. E. Ladd gives the 

 following analysis: 



Ferric oxide 73 . 60 per cent. 



Silica 10.06 per cent. 



Alumina >. 9 . 89 per cent. 



Phosphoric acid Trace. 



Sulphuric acid Trace. 



Lime Trace. 



Water and loss 6.15 per cent. 



100.30 

 Metallic iron 51.52 per cent. 



The northern ore field, lying on the Juan M. Martinez headright along the 

 banks of Battle Creek, comprises an area of nearly two square miles. This 

 ore field consists of two flat-topped ridges, lying on both sides of the creek, 

 and having an elevation above it of one hundred and fifty feet (bar.). 

 The upper portion of the hills is covered with a heavy deposit of grayish yel- 

 low sand, under which the ore deposits appear as outcropping and broken 

 fragments, many of which have fallen farther down the steep sides of the 

 hills, and in numerous places have been the protecting covering of the small 

 benches along the eastern and southern sides of the hills. The ores of this 

 field are similar to those found at Brownsboro and in the southern portion of 

 the county in the neighborhood of Fincastle. 



On the south side of the J. M. Martinez survey there is a small ridge of 

 ferruginous sandstone and concretionary ore in small fragments. In pass- 

 ing northwesterly this ridge increases in altitude until it reaches its maximum 

 altitude of one hundred and fifty feet (bar.) above Battle Creek. 



Near- Mr. Chapman's house, and on Mr. D. Cade's farm on the same head- 

 right, the ore is of the buff crumbly variety, covered with the usual ferrugi- 

 nous sandstone. 



The ore bed in this field appears to have a general or uniform thickness of 

 two and one-half or three feet. Large quantities of broken fragments of ore 

 are found as debris lying along the bases of the ridges. This debris is mixed 

 to a considerable extent with the ferruginous sandstones ovenying the ore. 



These sandstones appear to increase in thickness in passing from the south- 

 west to the northeast of the county. 



The specimens obtained from this portion of the county give the following 

 analysis: 



