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_ Pers Heathcote, Sir Henry, 1777-1851. XE An exposition of the different proportions in 827 which, under various circumstances, the velocity
~H35E of a ship may probably be increased or produced, by setting the patent stay-sails, invented by Rear-Admiral Sir Henry Heathcote ... CLondon, Printed by the Philanthropic Society, St.George's Fields] 1827.
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