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Our galleries are quietest on weekdays and weekend mornings. At busy times, particularly on Saturdays, you may need to queue for our temporary exhibitions.

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The method and plain process for making pot-ash, equal, if not superior to the best foreign pot-ash. Published, in consequence of the late encouragement granted by Parliament for that purpose. By Thomas Stephens.

The method and plain process for making pot-ash : equal, if not superior to the best foreign pot-ash published, in consequence of the late encouragement granted by Parliament for that purpose / By Thomas Stephens.

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The method and plain process for making pot-ash, equal, if not superior to the best foreign pot-ash. Published, in consequence of the late encouragement granted by Parliament for that purpose. By Thomas Stephens.

The method and plain process for making pot-ash : equal, if not superior to the best foreign pot-ash published, in consequence of the late encouragement granted by Parliament for that purpose / By Thomas Stephens.