Progress of Railways in the United States - p130

doi:10.1038/scientificamerican08261893-130

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Armour Institute - p130

doi:10.1038/scientificamerican08261893-130a

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Color Photography - p130

doi:10.1038/scientificamerican08261893-130b

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Notes from the Worlds Columbian Exposition Chicago 1893 - p131

doi:10.1038/scientificamerican08261893-131

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A Kindergarten Teaching Device - p132

doi:10.1038/scientificamerican08261893-132

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A Machine for Finishing Saws - p132

doi:10.1038/scientificamerican08261893-132a

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A Gold and Silver Refining Establishment - p132

doi:10.1038/scientificamerican08261893-132b

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A Device to Teach Spelling - p132

doi:10.1038/scientificamerican08261893-132c

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An Improved Balanced Slide Valve - pp132 - 133

doi:10.1038/scientificamerican08261893-132d

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Improved Circular and Elliptical Boring Machine - pp133 - 134

doi:10.1038/scientificamerican08261893-133

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Experiment Showing Magnetic Lag - p134

M. Hopkins

doi:10.1038/scientificamerican08261893-134

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Nasmyth's Torpedo Boat of 1853 - p135

doi:10.1038/scientificamerican08261893-135

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Warburton Road Bridge—Manchester Ship Canal - p136

doi:10.1038/scientificamerican08261893-136

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The Century Vase at the Fair - p137

doi:10.1038/scientificamerican08261893-137

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The Santa Maria at the Fair - p137

doi:10.1038/scientificamerican08261893-137a

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World's Columbian Exposition—Entrance to the Palace of Agriculture Building - p138

doi:10.1038/scientificamerican08261893-138

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A Twin Daisy - pp139 - 140

doi:10.1038/scientificamerican08261893-139

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