5 pages, 1 folded leaf of plates : illustrations ; 28 cm

Specification of Owen Bowen and Ambrose Miller : decomposing noxious gases.

An improved deodorizing, decolorizing, and filtering medium / [Owen Bowen].

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Bowen, Owen.

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Specification of Owen Bowen and Ambrose Miller : decomposing noxious gases.

An improved deodorizing, decolorizing, and filtering medium / [Owen Bowen].