Aerated water apparatus

This apparatus to produce solutions of carbon dioxide in water (aerated or 'soda' water) was devised around 1775 by John Nooth (1737-1828), who took his M.D. in Edinburgh in 1766. This example was probably made in England, although items of this nature were also made by the Leith Glass Works.

Nooth recommended partly filling the bottom vessel with diluted acid, the middle vessel full of water, with the upper vessel, empty, placed on top. Chalk placed in the base would effervesce through a valve into the middle vessel and force water into the top part. This process would be repeated several times and the water in the middle vessel would become progressively impregnated.

Great interest was shown at the end of the 18th century in the healthy effects of aerated mineral waters, and Joseph Priestley first suggested an apparatus in 1772. The Leith Glass works advertised such devices in 1787.

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