Miscellaneous Intelligence. ; 157 
and practically acquainted with what relates to the subject of iron, he 
was eminently fitted for the labor he has here performe i 
divided naturally into two parts. The first is a “ Directory to Iron works” 
in the U.S.; Furnaces and Forges and Rolling Mills. The second part 
(from the 264th page to the end) is a “Guide to the ores,” embracing 
rst, general considerations respecting iron as an element, and next, its 
D, G, J, are devoted to the rolling mills of the U. States, 224 in number. 
From a valuable statistical summary in the end of the volume we draw 
the following facts. : 
The entire production of raw metal in the U.S. in 1856 was a little 
over eight hundred thousand tons (812,917 tons), being an increase of 
12 per cent from 1854, For the year 1856 the whole iron production 
advanced only 6 per cent over the previous year, but the anthracite branch 
of the manufacture reached the aggregate of 394,509 tons, being nearly 
one-half the whole iron product of the country, and showing an increase 
of thirteen per cent over the previous year, a fact to be explained by the 
conversion of charcoal furnaces into anthracite furnaces. The industry 
naturally tends to concentrate itself about the ee centre on fuel 
industry outside of Pennsylvania by an annual rate of over six per cent, 
large a number of rail ys in progress of construction. 
The grand total of iron of all kinds, domestic and foreign, used in the 
ue States in 1856 is set down at 1,330,548 tons, which is distributed 
us: 
: Domestic. Foreign. Total. 
Rolled and hammered, 519,081 298,275 «817,356 
Pig iron, 387,154 55,403 392,557 
856,235 363,678 1,209,913 
1,200 efficient iron we the U.S., 
producing annually about 850,000 tons of iron, the value of which in an 
ordinary year is fifty millions of dollars, of which the large sum of 
$35,000,000 is expended for labor alone. ; ; 
Mr. Whitney, in his Metallic wealth of the United States, estimates 
P 
down for the U.§., Great Britain producing that year 3,000,000, 
