Road Improvement - p128

doi:10.1038/scientificamerican02271892-128

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Position of the Planets in March - p129

doi:10.1038/scientificamerican02271892-129

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An Improved Dental Plugger - p130

doi:10.1038/scientificamerican02271892-130

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An Improved Wood Bending Machine - p130

doi:10.1038/scientificamerican02271892-130a

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A Silk Spinning Spindle Support - p130

doi:10.1038/scientificamerican02271892-130b

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Indoor Curling - p131

doi:10.1038/scientificamerican02271892-131

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New Electrical Governor - pp131 - 132

doi:10.1038/scientificamerican02271892-131a

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How to Take Silver Stains Out of a Gelatine Negative - p132

J. V. Drake

doi:10.1038/scientificamerican02271892-132

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Magnitude of molecules and Light Waves - p133

Morton

doi:10.1038/scientificamerican02271892-133a

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The Transportation of Petroleum - pp134 - 135

doi:10.1038/scientificamerican02271892-134

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Professor Joseph Lovering - p136

doi:10.1038/scientificamerican02271892-136

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A Bamboo Bridge in Sikkim, India - p137

doi:10.1038/scientificamerican02271892-137

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To Inventors - p139

doi:10.1038/scientificamerican02271892-139b

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