The St. Louis Republic. [volume] (St. Louis, Mo.) 1888-1919, 1903-07-10
Unparalleled Outdoor Mining Dis
play for 1000 Feet Along
Sides of Rayine.
INDIANS TO SMELT COPPER.
Coal Vein Exposed on Exposition
to Be Mined, While Joplin
Mills Turn Out Crude
Zinc.

Mexican Indians smelling copper ores by
tez invasion is destined to become one of
tho features of the great outdoor mining
display in the "Gulch" at the Worlds Fair.
The "Gulch." which will be as distinctive
In its way as the pike" is n long ravine
running into the wooded plateau from the
rear Of the Mines and Metallurgy building.
For 1000 feet along the steeply sloping
sides of the "Gulch' coal mines. gold mines,
oil wells and gas wells will be in actual
operation. Chief Holmes of the Mines and
Metallurgy Department has about COM
pleted these great Industrial shows.
Chief among his outside displays is to be
the actual mining of coal from the vein on
the Exposition which was exposed during
the excavating for the foundations Of the
United States Government building.
He has secured tract of about thirty
acres covering the coal vein. Tunnels and
drifts will be run into the seam where Its
outcroppings show along the "Gulch."
Miners will soon begin to sink on the coal.
TO gain enough depth for the mine illus
tration by the opening of the Fair.
Returning to the Mexican Indian exhibit
brings TO the imaginative mind the pleasure
" NC utilNeu III "dlClIlilS al Ddllu VI
smelling copper ores by their ancient proc
ess. The copper ore must be dressed in
troughs then reduced in mud furnaces to
matte.
WHAT VISITORS WILL SEE
The visitor will see them roasting the
matte In adobe reverberatory furnaces and
smelling the black copper in small pits
which receive a blast from cowhide bell
lows. The crude copper must next be ham,
mered out by hand into small pots and
ornamental vessels and sold on the grounds
to help defray the expenses OF the exhibit.
The Indians will dwell In their native tile
covered huts and grind corn Tor tortillas
in stone mills brought from Mexico.
a Joplin mill will be run on zinc ores
shipped TO the Exposition from Missourrs
famous mining district. The mill Is intend
ed to illustrate the concentration system by
which the crude zinc is separated from for
eign minerals In the ores. Disseminated
lead ores Of Southeastern Missouri will be
treated in another style OF concentration
mill.
A stamp mill will hammer out gold from,
ores shipped to St. Louis from the famous
mines of the Black Hills and the sulphurets
will be concentrated on the tables before
the eyes of visitors. Prospecting in the
great mining States OF the Rockies will be
fully exhibited in actual operation by dia-
mond drills and churn drills. The work will
be done by experienced prospectors.
The Missouri method of smelling lead
ores on Scotch hearths and in air furnaces
will be shown by native smeiters, while a
block OF zinc furnaces will illustrate the
conservative method Of smelling in retorts.
Several different systems OF gas producers,
foundry making castings in iron and other
metals overhead tramways conveying ores
from the mine to points over the grounds,
these are other of the interesting live ex-
hibts promised by Chief Holmes in his
great outdoor mining display.