MINING GEOLOGY 
345 
red salt, probably polyhalite, occurring somewhere between 875 
and 925 feet below the surface, and this red salt contained 9.2 
per cent of potash, calculated as oxide. 
In the same year the Miller boring, in Potter County, fur¬ 
nished somewhere between 1,500 and 1,700 feet below the surface, 
some red salt that contained 6.1 per cent of potash calculated as 
oxide; and at some level below 1,700 feet it had some colorless 
salt associated with anhydrite. This salt contained 10.5 per cent 
of potash, calculated as oxide. 
During 1921 there was found in the Bryant boring, in Midland 
County, in cuttings accumulated while boring from 2,405 to 
2,425 feet below the surface, a mixture of colorless and red salt, 
shale and anhydrite, yielding 6.9 per cent of potash, calculated 
as oxide. 
In the early part of the spring of 1921 the La Mesa Oil & 
Gas Co’s. Burns No. 1 boring, in Dawson County, at a depth 
of from 1,864 to 1,865 feet below the surface, disclosed a red 
salt which yielded 10.8 per cent of potassium oxide. 
In the Means well, in Loving County, about 40 miles north of 
Pecos, samples show 15.5 per cent of potassium oxide, coming 
from a depth of 1,000 feet, and there is 8 per cent of potassium 
oxide in samples from between 1,855 and 1,860 feet. 
In the River well of the A. Pitts Oil Co., about 8 miles east 
of Bafstow, in Ward County, near the Pecos River, showings of 
14.4 per cent of potassium oxide were obtained from samples 
taken at 1,600 feet. In a sample taken at a depth of 1,875 feet 
in the same boring there was found 10.5 per cent of potassium 
oxide. 
In the G. A. Jones et al. Long well, in the southeast part of 
Borden County, an analysis shows the presence o£ 22.9 per cent 
of potassium oxide in a picked sample from between 1,070 and 
1,075 feet; and a picked sample from cutting between 1,075 and 
1,083 feet shows 17.68 per cent of potassium oxide. The sample 
from 1,115 feet, similarly picked, shows 6.59 per cent. 
Udden. 
Recovery of Low-grade Magnetitic Ores in North Carolina. 
Success of recent concentration tests upon the low-grade iron ores 
of Ashe and Avery counties promises important economic develop¬ 
ments at an early day. Among other problems taken up by the 
