The Saint Paul globe. (St. Paul, Minn.) 1896-1905, 1900-09-09
DELNNG IN COAL MINES
NOT FOR WAGES, BUT TO LEARN
PRACTICAL DETAILS OF
MINING
NEW COURSE At HARVARD
Planned to Meet the Increasing De-
mand for Mem Having Thor
Ough Training as Mining
Engineers.
NEW COURSE AT HARVARD

BOSTON, Mass, Sept. 8.-(Special.)-
This week a party of young men are
working in and about the coal mines of
Pennsylvania. Busy as they are, they
are not miners, but are party of Har-
ward students under one of their instruc-
tors, studying practical mining operations.
The demand for competent mining engi-
neers has increased of late years to such
an extent that the great Eastern univer-
sity is devoting special attention to this
department of engineering.
This field work is only an indication of
the attention which Harvard is giving to
mining engineering On the historic
Holmes Field, where athletic battles were
once fought, there stands a brick struc-
ture which was formerly the Carey build
ing, the headquarters of the crew and the
nine but which is now the Rotch build
Ing Of the department Of mining and
metallurgy, and which today is being re-
arranged and enlarged for it's new pur-
poses.
What was formerly the tank where the
eight practiced in expectation of the
fierce struggle on the Thames with Yale,
or on the Hudson with Cornell has been
duous athlete of former times would be
lost in 1t. Strange looking hoods queer
"muffie" furnaces, and tables covered
with chemical apparatus are in the place
where the oars once splashed; for the
tank room is now the laboratory of me-
tallurgical chemistry, where instruction
in practical metallurgy and assaying is
given the young men of Harvard who are
ambitious to become engineers Of mines
or assayers. Where were once the lockers
and shower baths are now lecture rooms
devoted to instruction in these branches.
LABORATORY PLANTS.
But the most surprising change of all Is
! going on in the eastern wing, the former
cage, now known as the Simpkins Metal
lurg1cal Laboratory in memory of +he
late Congressman John simpkins Ir'
class of 's3. This laboratory will con-
tain, when finished, complete outfit for
the treatment of ores, and will extend
into a new wing which is being built to
the east
The mining department of Harvard Is
branch of the Lawrence scientific
school, Of which Prof. Nathaniel S. Shall
er is dean. and is in charge of Henry
Lloyd Smythe, Harvard. ABB, '83, CE..
49, professor of mining. Another indi-
cation of the attention which Harvard is
giving to mining engineering was the
securing of George s. Raymer as instruc-
/ tor in mining. Mr. Raymer, after seven
teen years of practical experience, is now
equfpping the laboratory
When completed, the cage will be far
different from what 1t was in former
days. Where once the pitchers and the
felders stood is now the huge concrete
foundation for ten-stamp mill. The
former cage will contain a complete ore
dressing plant, including besides the ten
stamp mill the following machines:
Crusher, Hartz mountain jigs, collum
jigs, hydraulic sizers, grinding MILL
humping table, frue vanners, slime belts
buddles, amalgamating pan, settler, ro-
tary pump, cleanup pan, and automatic
Sampler
In the new wing Will be the smelling
works, consisting Of a lead and copper
stack furnace. reverberatory roasting
furnace, revolving roasting cylinder,
smelling and gas furnaces, root-blower
and assaying furnaces.
In the south part of the new wing will
also be an assaying Office which will con-
sist of muff1e and crucible furnaces and
complete apparatus for assaying and
analyzing ores and minerals.
The ore for treatment in the ore-dress-
ing plant in the former cage will be
placed in bins in the new part of the
building and drawn thence in small car,
which will be elevated to the height of a
grizzly" or ore screen, and dumped.
What ore goes through this is then taken
to coarse rolls, and what is too large to
go through is treated in crusher and
then goes to the coarse rolls.
After leaving the coarse rolls the ore is
taken by a belt elevator to q sampling
machine and is then delivered to another
elevator.
STAMP MILLS.
The future course Of the ore now de-
ponds upon its character. If free
gold" or free milling or stamping ore,
1t goes to the stamp bins, thence to the
feeder which delivers the ore to the
Battery or stamp mill. When stamped
to the desired fineness 1t passes through
the screens of the battery" over silver
plated amalgamated plates, where the
gold is collected by mercury, and the
balance of ore remaining goes to a series
of concentrating tables which separate
the valuable constituents from the worth
less rock. Among these tables are
puddle" slime helt,' "amalgamating