habits to do this, and you will never think of doing it in any other
way. If it becomes necessary to stop your engine with a hot fire and a
high pressure of steam, don't throw your door open, but drop your damper
and open the smoke box door.

If, however, you only expect to stop a minute or two, drop your damper,
and start your injector if you have one. If you have none, get one.

An independent boiler feeder is a very nice thing, if constructed on the
proper principles. You can't have your boiler too well equipped in this
particular.

PART FOUR. _______

A boiler should be kept clean, outside and inside. Outside for your own
credit, and inside for the credit of the manufacturers. A dirty boiler
requires hard firing, takes lots of fuel, and is unsatisfactory in every
way.

The best way to keep it clean is not to let it get dirty. The place to
begin work, is with your "water boy," pursuade him to be very careful of
the water he brings you, if you can't succeed in this, ask him to
resign.

I have seen a water-hauler back into a stream, and then dip the water
from the lowerside of tank, the muddy water always goes down stream and
the wheels stir up the mud; and your bright water hauler dips it into
the tank. While if he had dipped it from the upper side he would have
gotten clear water. However, the days of dipping water are past, but a
water boy that will do as I have stated is just as liable to throw his