Fill lamps to within half
an inch of the top. If filled brimming full, the outside of the lamp will
be constantly covered with the oil, even when unlighted; while as soon as
lighted, heat expanding it, it will run over, and grease every thing near
it.
3. In lighting a lamp, turn the wick up gradually, that the chimney may
heat slowly: otherwise the glass expands too rapidly, and will crack.
4. Keep the wick turned high enough to burn freely. Many persons turn down
the wick to save oil, but the room is quickly poisoned by the evil smell
from the gas thus formed. If necessary, as in a sick-room, to have little
light, put the lamp in the hall or another room, rather than to turn it
down.
5. Remember, that, as with the fire, plenty of fresh air is necessary for
a free blaze, and that your lamp must be kept as free from dirt as the
stove from ashes. In washing the chimneys, use hot suds; and wipe with
bits of newspaper, which not only dry the glass better than a cloth, but
polish it also.
6. 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_.
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