the oil reservoir, to make the lat- der without their attending drawbacks. ter of metal, and to feed the oil to the wick only in small " The rudder is suspended from ■ the quantities, as required. The lamp is simple—does not re- stern-post in any of the ways usual with quire an engineer to run… … the foregoing sufficiently novel to merit your attention, I Patent now pending through the Scientific American Patent shall be obliged by insertion in- your next issue, for which Agency. Further information may be obtained by addressing The reservoir, A, is of polished metal, so as not to absorb…
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