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Business and Personal
Notes and Queries
Index
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The Obstructions in the Delaware - pp159 - 160
doi:10.1038/scientificamerican03161889-159
Naval and Maritime Prospects Under the New Administration - p160
doi:10.1038/scientificamerican03161889-160
Vibrations of Diaphragms - pp167 - 168
M. Hopkins
doi:10.1038/scientificamerican03161889-167a