338. Keeping a Door Open
To keep a door open, place a brick covered neatly with a piece of carpeting against it, when opened sufficiently.
339. To Ascertain whether a Bed be Aired
Introduce a drinking glass between the sheets for a minute or two, just when the warming-pan is taken out; if the bed be dry, there will only be a slight cloudy appearance on the glass, but if not, the damp of the bed will collect in and on the glass and assume the form of drops—a warning of danger.
340. To prevent the Smoking of a Lamp
Soak the wick in strong vinegar, and dry it well before you use it; the flame will then burn clear and bright.