A WEEKLY JOURNAL OF PRACTICAL INFORMATION ART SCIENCE MECHANICS CHEMISTRY AND MANUFACTURES. Vol. [Price 10 Cents. HILGARD'S DESIGN FOR A STEEL ARCH BRIDGE AT MINNEAPOLIS. GENERAL DIMENSIONS. _iimis0„4 'et —44WR4Itilrgv SECTION SHOWING LOWEST HEADROOM. SCALE-10 FEET EQUAL 1 INCH. PROPOSED STEEL ARCH BRIDGE AT MINNEAPOLIS MINNBY K. EMIL HILGARD Oki!, scientific american, 1886-10-23
A WEEKLY JOURNAL OF PRACTICAL INFORMATION ART SCIENCE MECHANICS CHEMISTRY AND MANUFACTURES. Vol. [Price 10 Cents. HILGARD'S DESIGN FOR A STEEL ARCH BRIDGE AT MINNEAPOLIS. GENERAL DIMENSIONS. _iimis0„4 'et —44WR4Itilrgv SECTION SHOWING LOWEST HEADROOM. SCALE-10 FEET EQUAL 1 INCH. PROPOSED STEEL ARCH BRIDGE AT MINNEAPOLIS MINNBY K. EMIL HILGARD Oki!, scientific american, 1886-10-23
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