No. 161.] 
129 
Extent and thickness of the Beds. 
The extent and thickness of beds of this ore is extremely varia- 
ble in difterent localities; it sometimes occurs in seams of a few 
inches in thickness; and again, in beds of six or eight feet in width. 
Most of the beds worked are from three to six feet average width, 
and a bed of three feet in general width sometimes enlarges to ten 
feet, and again decreases to one foot. The narrowest bed I have 
seen worked was about eighteen inches average width ; having 
been penetrated to the depth of nearly forty feet. I shall, howe- 
ver, have occasion to mention beds of several hundred feet in 
width. 
Few of these beds have been tracted uninterruptedly for more 
than a mile, though many of them doubtless extend several miles, 
but are covered with soil and fragments of rocks, which prevent 
examination without much labor. 
Local details. 
Beds of this kind of ore have been more extensively wrought in 
the vicinity of Clintonville, than any other place. And the most 
extensive one here is the Arnold bed, or rather beds, there being 
four parallel, and at no great distance from each other. Two of 
these have been wrought to a considerable extent; one of them to 
the depth of 200 feet or more, and having an average width of six 
feet. The width of the bed and quality of the ore continued nearly 
the same, or somewhat improved, to this depth. The whole length 
of the working was about 80 rods; course NNE; dip 70° WNW. 
At the distance of half a mile north of this place, in the direo 
lion of the bed, an opening was made and ore of similar quality 
obtained, thus furnishing a fact in evidence of the continuation of 
the bed to that distance. At a point 70 or 80 rods southward from 
this working, another bed has been opened, which appears to run 
more westerly than either of the four mentioned. 
The next in importance is the Palmer bed. This has been pene- 
trated to the depth of nearly 100 feet, the width and quality of the 
ore continuing the same. The width varies from 4 to 10 ft; its gene- 
ral width being about 7 feet; it has been worked about 100 rods in 
length, in a N. N. E. and S. S. W. course; the dip varying from 
65° to 80° W.N.W. This bed, as well as those last mentioned, if 
properly managed, is capable of furnishing large quantities of ore. 
[Assem. No. 161.] 
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