In using either student-lamps, whether German or American, or the beautiful and costly forms known as moderator-lamps, remember, that, to secure a clear flame, the oil which accumulates in the cup below the wick, as well as any surplus which has overflowed from the reservoir, must be _poured out daily_.

The neglect of this precaution is the secret of much of the trouble attending the easy getting out of order of expensive lamps, which will cease to be sources of difficulty if this rule be followed carefully.
7.

Keep every thing used in such cleaning in a small box; the ordinary starch-box with sliding lid being excellent for this purpose.

Extra wicks, lamp-scissors, rags for wiping off oil, can all find place here.

See that lamp-rags are burned now and then, and fresh ones taken; as the smell of kerosene is very penetrating, and a room is often made unpleasant by the presence of dirty lamp-rags.