246 
GEOLOGY OF NORTH CAROLINA. 
No. 32. John (Jlark. The ore closely resembles that from the Widow 
Cook’s plantation. 
No. 33. Widow Stanly, Sergeant Shaft. The ore is compact, granular, 
iron-black ; it shows rarely octahedral crystals of magnetite, and is as- 
sociated with dark green, foliated chlorite, especially on the fracture 
planes. 
Nos. 34, 35, 36. Widow McCuisten. The greatest variety of ores exist 
at this plantation. They are peculiar but highly interesting and impor- 
tant. No. 34 is the soft micaceous ore ; 35, the magnetic portion of 34 ; 36, 
the non-magnetic portion. 
No. 37. W. A. Lewis. Very fine granular ore, with very little ad- 
mixture of chlorite. 
No. 38. Levi G. Shaw, Rockingham. Fine-grained, black, slightly 
micaceous ; shows a somewhat stratified structure. 
No. 39. P. Hopkins (Alcorn Farm), Rockingham. Very fine-grained, 
black, fragile ore, with little admixture of foreign substances. 
No. 40. Granular, reddish ore. It has much the appearance of agran- 
ular reddish-brown garnet, for which it has been mistaken, until the 
analysis proved it to be not a silicate, mixed with granular magnetite, but 
corundum. 
If this and the next should be found in quantity, they would be of con- 
siderable value, as a good quality of emery. 
No. 41. Granular grayish ore. This is of a similar quality, and is found 
at the same locality ; the minute grains of corundum have a yellowish or 
brownish-white color, and show in many places cleavage fractures, which 
give it the appearance of a felspathic mineral. 
From these analyses it is seen that the average of the ten specimens of 
original iron ore, which represent the whole range for a distance of nearly 
30 miles, is 
Iron 54.61 per cent. 
Titanium 8.07=13.24 per cent, of titanic acid. The ratio between 
titanium and iron is=l ; 6.77. 
All the ores were examined for sulphur and phosphorus, and were 
found to be entirely free from these substances.” 
As there seems to be an unfavorable impression of the titaniferous 
ores in some quarters, it is worth while to quote Dr. Lesley on the sub- 
ject of the effect of titanic acid in iron ores, as there is no higher au- 
thority in this country : “This kind is difficult to smelt in the high-stack 
blast furnaces ; but makes the best iron in the world, when smelted in 
the Catalan forge ; and is of great value for the lining of puddling fur- 
naces. It serves the same purpose as the Lake Superior ore, which is 
