368. Polished Iron Work
Polished iron work may be preserved from rust by an inexpensive mixture, consisting of copal varnish intimately mixed with as much olive oil as will give it a degree of greasiness, adding thereto nearly as much spirit of turpentine as of varnish.
369. Cast Iron Work
Cast iron work is best preserved by the common method of rubbing with black-lead.
370. Rust
If rust has made its appearance on grates or fire-irons, apply a mixture of two parts of tripoli to one of sulphur, intimately mingled on a marble slab, and laid on with a piece of soft leather. Or emery and oil may be applied with excellent effect; not laid on in the usual slovenly way, but with a spongy piece of fig wood fully saturated with the mixture. This will not only clean but impart a polish to the metal as well.