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Substitute for Red Lead—Ocher - pp233 - 235
doi:10.1038/scientificamerican03261859-233c
Engineering Precedents—Gun-Boat Propellers - p237
doi:10.1038/scientificamerican03261859-237a
Tribute of Respect to the New Postmaster-General - p237
doi:10.1038/scientificamerican03261859-237c
Verifying Coal Weight by Cubic Measure - p237
doi:10.1038/scientificamerican03261859-237d
