808 The American Geologist. November, i8t.7 
Roan Mountain companies, and undeveloped discoveries on 
the Stratton, DeBardeleben, Heupscup, Crab Orchard and 
so-called Magnetic tracts, the last at South Watauga belong- 
ing to the East Tennessee Mining and Improvement Co. 
Other discoveries have been made on the Roan Mountain Iron 
and Steel Co's. tract. 
These tracts form a chain several miles in length rounding 
the base of Roan Mt. A sample of the ore from the "Mag- 
netite Mine" taken by Mr. Jeremiah Head of Middlesborough, 
England, in 1890, closely resembled, according to an analysis 
by Pattison & Stead of that city, the average of Cranberry 
ore. A considerable proportion of the iron was, as in the case 
of the Cranberry product, evidently in silicated form, and 
contained in the accompanying pj^roxene as indicated b}'' the 
large percentage of lime. This analysis free of oxygen and 
moisture is printed in Mr. Head's report on the mine etc., as 
follows : 
Iron 43.75 
Alumina 4.66 
Lime 9.94 
Magnesia 3.05 
Silica 21.90 
Sulphur 0.02 
Phosphoric acid 0.01 
The Citico mine when visited in the year 1891 had been 
abandoned. A series of small lenses at shallow depths had 
been exhausted. The ore produced was of inditf'erent qual- 
ity, but a small part of the ore on the stock pile being up to 
shipping grade. 
Of the ore belt as a whole at Cranberry little or no polarity 
is sensible at the surface, j'^et stripped ledges and broken 
remnants of ore lenses as left in excavation, especially below 
the zone of rock decay do not, on the contrary, fail to exert a 
powerful influence on the magnetic needle, as observed inside 
the Cranberry workings and quarry. The same is the case 
at the one opening of the western ore belt, and only negative 
results were obtained in etforts to trace its extension. 
The dipping and horizontal needle of at least kajid instru- 
ments therefore afford little or no aid in the search for iron ore 
in this region, notwithstanding a moderate degree of ])olarity 
in broken fragments of sound ore, and even in specimens of 
