fed 
Lesley. ] 154 
[June 16, 
but is comparatively brittle. Its color is not white, but has a tinge of 
straw color light brown. 
The lighter and looser varieties of the Tuscarora ores have a lower per 
centage of iron in them, but will work more kindly in the blast-furnace. 
I had Mr. Frazer make me an analysis of a piece of outcrop ore from the 
Highfield plantation. It gave: Magnetic oxide, 44.53 [metallic iron, 
32.25]. These varieties make equally good iron, and iron as well adapted 
to the manufacture of steel. 
The hard and soft varieties of ore occur often within a few hundred 
yards of each other ; as, for example, on the Widow McCristen’s planta- 
tion (14-15 miles), where the soft outcrops are seen on the hill opposite 
the house, and the hard ore lies in large chunks on the hill, south of the 
swamp. I append Dr. Genth’s analysis of specimens from the two places, 
made at my request: 
1. Massive ore from Mrs. McCristen’s Plantation. The analysis was 
so unexpected in its character, that Dr. Genth suspected some error, and 
repeated it, but with the same result. The small amount of titanium 
shows the varying nature of the deposits. The percentage of iron is also 
low for this kind of ore: 
IVOT ies ie gf 88.97 p.c. 
Bip auinyanl | ese! ee 1.60 [=2.63 p.c. titanic acid.] 
Ratio Of item TO drones a B.S a ee 1: 21.24. 
2. Soft micacious ore from the same locality. The high per centage of 
both iron and titanium in this ore was equally unexpected, and was very 
gratifying ; for it will be seen from fig. 7, on page 17, that there is a 
total breadth of ten feet to this outcrop, in a space of twenty-seven. If 
any of the beds unite descending, the yield of ore will be great. 
EON Se i ree ess: 43.47 p. ¢ 
LCA SG a eee 9.79 [==16.06 p. c. of titanic acid. ] 
iRat© OL Pitan HOON 4. as ee 1: 4.44 
It is made known by the Canadian geologists that the constituents of 
some of these primary ores are combined in sucha way as to approximate 
the rock to a diorite, or green-stone trap. Now, such a rock is seen on 
several of the Company’s leases ; and especially on the Shaw, and other 
plantations two miles southeast of it. Sometimes the ore-bed itself be- 
come dioritic. 
It will not be amiss to add other analysis of these Ores. 
Ore Analysis, by F. A. Genth, in 1868. 
MBGNetICOsIde. 8 i 79.78 Sa Woy: 4 7a pares 
ECACC ye Bee 8 aw tes US 
Oxide manganese, ... ees 0.2 
Chrome oxide (trace of Vanadium)...... 0.82 
DUQC HOI ee ee ee, 0.75 
MIA a ee ee 4.62 
Mapnestaniid lit. siievivoomer. fives * 2.04 
12 nen PR i Gree i ee 0.18 
