450 GEOLOGY OF NORTHWESTERN TEXAS. 



" University of Pennsylvania, 

 "Dr. F. A. Genth, Consulting and Analytical Chemist, 

 "West Philadelphia, March 3, 1882. 

 "The following are the results of assays made by me of samples marked: 

 "I. Sixteen sacks Texas ore received at Schuylkill Copper Works, 20th 

 February, 1874, by M. Veale, contained sixty-one (61) per cent of copper. 



"2. On March 13, eleven sacks and two deer skins Texas copper ore — 

 two thousand six hundred and ninety (2690) pounds — contained fifty-eight 

 and ninety-four hundredths (58.94) per cent of copper. 



"3. Two thousand three hundred and forty-two (2342) pounds Texas ore, 

 etc., 21st April, 1874, contained sixty-two and thirty hundredths (62.30) per 

 cent of copper. 



" 4. On April 29, 1874, Texas copper ore No. 4 contained fifty-seven and 

 fifty-nine hundredths (57.59) per cent of copper. 



"5. Six sacks of Texas copper ore — one thousand four hundred and sixty 

 (1460) pounds— July 18, 1874, contained fifty-eight and forty hundredths 

 (58.40) per cent of copper. 



" These are all the assays which I have made. 



. "P. A. Genth." 



Since that time nothing has been done to develop the property. 



A few years ago Gen. McClellan organized a company in New York for 

 the purpose of developing the copper in the Permian in Texas. Gen. Mc- 

 Clellan had been with Capt. R. B. Marcy in his exploration of Red River 

 in 1852, and had seen the copper deposits found at that time. He came to 

 Texas in these later years with an outfit for exploring and prospecting the 

 copper region of Texas. They prospected the country through Haskell, 

 Knox, Hardeman, and Wilbarger counties. They were equipped with dia- 

 mond drills, and a smelter was erected in Hardeman County. Many holes 

 were put down and much work done in the way of prospecting. The 

 death of Gen. McClellan put a stop to the enterprise. No attempt had been 

 made to make a geological examination of the country and to determine the 

 relations of the copper deposits found in various counties in that part of the 

 State until the work of this Survey was begun. 



The country was known to belong to the Permian formation, but the rela- 

 tion of the copper beds and the nature of their occurrence had not been 

 studied. 



Capt. Marcy made the mistake of calling an indurated water-worn clay 

 volcanic scoria, and nearly every geologist who has visited that field since 

 has gone with the idea that there would be found veins of metaliferous ma- 

 terial traversing the country rock in various directions, and that the best de- 

 posits of copper would be found at a lower depth than the outcrops. 



