Whitby doctor’s 1851 leech barometer used 12 leeches to ring a storm bell at the Great Exhibition
George Merryweather wired a dozen leeches in pint bottles to tiny hammers, pitched the idea for Britain's coasts and lost out to FitzRoy's storm glass.
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George Merryweather wired a dozen leeches in pint bottles to tiny hammers, pitched the idea for Britain's coasts and lost out to FitzRoy's storm glass.
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