desired, lids to lift, and breathing the heated fumes arising from an these parts to impart return motion, which requires a great- may be conducted into another apartment by the flue shown. open coal fire is avoided. The device may be adapted to er amount of pressure at this point of the operation… … under Commander T. 0. Selfridge, has selected a route in- dress. will escape into the chimney flue by the pipe, J, Fig. 1. The cluding 100 miles of river navigation of the Atrato, which —-• — vessel shown surrounding the chimney flue in the last men- stream has been found to offer a sufficient…
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