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he produced a popular version of the Martín Cortés de Albacar's Arte de Navegar, entitled A Regiment for the Sea.
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His design, detailed in his book Inventions and Devises published in 1578, was one of the first recorded plan for an underwater navigation vehicle.
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Bourne's concept of an underwater rowing boat was put into action by the Dutchman Cornelius Drebbel in 1620
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Nathanial Symons created a one-man expanding/contracting sinking boat
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Used in many large navies