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Isaac Swainson promoting his 'Velnos syrup', facing an onslaught of rival practitioners advocating mercury. Coloured etching by T. Rowlandson, 1789.

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Swainson, Isaac, active 1797.

Images from the collections

Images featuring Swainson, Isaac, active 1797.

Works from the collections

Isaac Swainson promoting his 'Velnos syrup', facing an onslaught of rival practitioners advocating mercury. Coloured etching by T. Rowlandson, 1789.