Houghton EC75.So883.785t - figures

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Houghton EC75.So883.785t - figures

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Summary

Illustration from A treatise upon aerostatic machines: containing rules for calculating their powers of ascension, 1785, by John Southern. Full scan of book: EC75.So883.785t, Houghton Library, Harvard University

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Date

1785
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Source

Houghton Library, Harvard University
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public domain

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1785 engravings
1785 engravings