106 Remarks on the Gold Mines of Virginia. 
and twenty two grains for every one hundred pounds, or one bushel. 
This, at 4,1, cents for cach grain of gold as before stated, gives 
$4 98 for one hundred pounds of the ore. 
In another trial, three and a half pounds of the powdered ore in 
which no gold was visible, yielded six grains of gold, or one hundred 
and seventy one grains for one hundred pounds, equal in value to 
6 98. 
A third experiment on ore in which gold was not visible, produced 
five grains from two pounds, equal to two hundred and fifty grains 
from one hundred pounds, and worth $10 21 to one hundred pounds 
ofore. The average of the three trials upon the ore of Moss’ mine 
is $7 39 to the one hundred pounds of ore ; and the average of the 
five trials made in the two mines is $7 70. Iam assured that when 
a mine yields one dollar to every one hundred pounds of the ore, 
(as the cost of working is stated to be about one third of this sum,) 
such a mine is regarded as profitable, and as justifying heavy expen- 
ditures in machinery and in operations of deep mining. At the 
Walton mine which I visited and examined, the average yield bas 
been, as stated to me by the manager, $5 92* to the one hundred 
pounds of ore; and two skillful gentlemen obtained from ore of that. 
mine between twelve and thirteen dollars to the one hundred pounds, 
being about the maximum obtained by me from the ore of the Busby 
mine. 
I forbear to quote instances of a much larger product, stated tome 
as having been obtained from the Busby mine, because the result 
was procured by an officer of the mines, although I have no reason 
to question either his integrity or his skill. ‘The average product at 
Fisher’s or Hughes’ mine, as stated to me at the mine by Mr. Fisher, 
is $3 15* for every one hundred pounds of the ore, and I infer from 
his statements of expenditure, that the cost is not over thirty to 
thirty five cents for every one hundred pounds. Comparisons can- 
not be made with accuracy between deposit mines and vein mines, 
because the expenses of working are so widely different. It may 
not, however, be useless to state, that at the Whitehall deposit mine, 
where twenty seven hands are employed, the work is profitably carri- 
ed on, with twenty dollars of gold obtained at present, in a day, and it 
is said that two cents on a bushel would yield a good return. Being 
dependent entirely upon information obtained since I came into the 
* Andnow mentioned by permission. I afterwards examined the Walton mine 
at another visit, and the report is annexed. 
