Specification of John Payne : machinery for obtaining motive power by ventilation of hot-houses, &c.; furnaces, coppers, boilers, &c.; manufacture of salt and iron.

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Specification of John Payne : machinery for obtaining motive power by ventilation of hot-houses, &c.; furnaces, coppers, boilers, &c.; manufacture of salt and iron. Public Domain Mark. Source: Wellcome Collection.