The art of making common salt, as now practised in most parts of the world; with several improvements. Proposed in that art, for the use of the British dominions / by William Brownrigg.

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The art of making common salt, as now practised in most parts of the world; with several improvements. Proposed in that art, for the use of the British dominions / by William Brownrigg. Public Domain Mark. Source: Wellcome Collection.