Early Scuba diving

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“The first sensation in descending under water in a suit of armor is the sudden, bursting roar in the ears, cause by the air driven into the helmet from the air-pump. The flexible air-hose has to be strong enough to bear the pressure of twenty-five to fifth pounds to the square inch.” -Lupton




F.M Lupton The Popular Cyclopeadia of Useful Knowledge (New York, NY: F.M Lupton, 1888)


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