Mark wrote a letter to his wife and gave it to Vassili to take to her, and this was what was in the letter: 'When the bearer of this arrives, take him into the soap factory, and when you pass near the great boiler, push him in. If you don't obey my orders I shall be very angry, for this young man is a bad fellow who is sure to ruin us all if he lives.'

My invention principally consists in the placing within a boiler spongy, porous, or solid substances of various kinds, so as to fill, or nearly to fill, its internal cavity, with the exception of the spaces between, or within, such substances.

Steam boilers may explode.

I'm afraid I got too carried away throwing passengers into the boiler.

The boiler can be reset by turning the left hand dial fully anti-clockwise.

The goal of this device is to keep the boiler pressure from increasing more than the calculation.

The boiler was heavily scaled.

Give me a reading on that meter near the boiler.

You have to click through reams of legal boilerplate to sign up for any web site, these days.

It is important to pressurise your gas boiler, as this allows more water to travel through the pipes in your home.