Fig. 3409.

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Fig. 3410.

The up take of a marine boiler is the casing or passage way through which the heat and gases pass after leaving the boiler. A dry up take is one which is outside of the boiler, as in [Fig. 3409], which represents an outside view of a boiler such as shown in [Figs. 3410] and [3411].

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Fig. 3411.