Blast Furnace: Apparatus for producing pig iron in tonnage
that beats the world.
Boy holding molds for blower in a south side glass-house.
Boys in a Sharpsburg Glass-House: The boy in right foreground
is holding molds. He opens the molds to receive the glass from the blower,
and closes them to press it.
Filling Molds: The corner of a Pittsburgh foundry.
Coke Workers: The waste of the old-time ovens is a field
for conservation where chemist and engineer are vying with one another.
Grinding Castings on an Emery Wheel: Pittsburgh is a center
for all manner of plants which turn iron and steel into manufactured forms-
foundries, fabricating plants, electrical works, car shops, locomotive
works. In them there is a greater call for mechanics than in the master
industry: yet the tendency is toward specialization, speed, and semi-skilled
labor.
Holding Molds: the boy at the right was twelve years old
and had not been to school for two years.
Underground Machine Men: Electric Drills and chain saws
have revolutionalized coal digging in the bituminous fields since the days
of the pit miners.
"The Great Black Mill Dominates Eye and Ear" :
As the town sees the Moorhead Iron Mill. Here the main thoroughfare, trolley,
and railroad lines come to a focus.
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