THE IRON ORES. 421 
county are contemporaneous with the coal formation of Jackson county, 
which was formed at the margin of the field. 
At Franklin Furnace, long since dismantled, small benches, at this 
general level, show that a little ore was once obtained here. At Empire 
Furnace the same thing is true. Near Jackson Furnace, Jackson 
county, also, a seam of rough ore, running from 1 to 2 feet in thickness, 
was worked on a small scale when the furnace was in operation, at 
about 90 feet above the Conglomerate level. On lots 12 and 13, Lick 
township, Jackson county, a rough ore is found 80 or 90 feet below the 
Lower Mercer limestone. In section 9, Lick township, ore has been 
dug 60 or 70 feet below the same horizon. At Petraea, Jackson county, 
ore also appears at this level. In section 33, Washington township, 
Jackson county, rough ore has been mined at 80 feet below the Lower 
Mercer limestone. In Richland township, Vinton county, near Rays- 
ville, ore has been recently mined in a small way, at 70 to 80 feet below 
the Lower Mercer limestone. In section 25, same township, an ore, 23 
feet thick, is mined at the same level. In section 3, and also in 2, of 
the same township, there are quite conspicuous displays of ore at the 
same general horizon. The last-named locality shows the iron as 
approaching a blackband ore. Attention was called to this point by 
Dr. D. V. Rannels, of McArthur. This ore may belong to the next 
lower horizon, as intimated on a preceding page. In any case, there is 
a large amount of the seam throughout the township. 
The statements that have been now given cover most of the facts 
as to the development of these lowest ores, and it is plain that they add 
but little to the mineral resources of the field. 
Boggs Ore. 
The next ore, No. 5 of the section, holds a very different place 
from those last described. It is a new ore, but it makes a valuable 
addition to the stock already known. In Bloom township, Scioto 
county, which is the most important center of its development, it is 
known as the Boggs ore, from the name of the farmer on whose lands 
it was first opened, but at Howard Furnace, in Vernon township, and 
also at Scioto and Bloom Furnaces, the same seam has been worked on 
a small scale for many years as the flag ore. This term suggests the 
nature of the ore. It is a stratified deposit, occurring in sheets or 
“flags”? like sandstone or shale. It is not a blackband, as there is no 
