aining either through which the cord may be passed, to be secured secured to the slide bars by straps, which project above liquids or dry substances should be greased with a to its cap, around which the cord may be wound when little vaseline in order to avoid any difHculty in re- the pivotal point,… … ment. As a rule stone bottles are best for acids and of Dr. David T. Day, special agent in charge of the BEHH & HARX'S PADDLE DEVICE FOR BOATS. ammouia, and glass or tin vessels for volatile sub- Division of Mines and Mining, of the Census Office. stances. All these should be closed by corks…
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