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Cowell, W.R.

PURE AIR, OZONE AND WATER.

A Practical Treatise of their Utilisation and Value in Oil, Grease, Soap, Paint, Glue and other Industries. Scott, Greenwood & Son ... 1900.
1st Ed. Sm. 8vo. [viii] + 85pp. + [iii] + 32pp. publ. adverts. 12 figures. very good in gilt lettered green cloth lightly faded to spine.
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