better fitter's than an upright burner with 6 cubic feet per hour. I do
not believe in the policy of giving a man a poor light to work by--it does
not pay; and I never expect to get a man to work properly with smaller
burners than these. We have a good governor on the main: and the lights
are all worked with a low pressure of gas, to get the best possible duty.
As a good practical light for a man at bench moulding, the one I have here
may be taken as a fair sample. It is free to move, and the light is as
near the perfect position as the necessities of the work will permit. When
the light is not wanted, by simply pushing it away it turns itself down;
the swivel being, in fact, a combined swivel and tap.

[Illustration: LOSS OF LIGHT BY GLASS SHADES.]

You will see on one of the lights I have here, a new swivel joint, which
has been patented only within the last few days. The peculiarity of this
swivel is that the body is made of two hemispheres revolving on each
other in a ground joint. It will be made also with a universal movement;
and its special advantage, either for gas, water, or steam, is that there
is no obstruction whatever to a free passage--in fact, the way through the
swivel body is larger than the way through the pipes with which it is
connected. It can easily be made to stand any pressure, and if damaged by
grit or dirt it can be reground with ease as often as necessary without
deterioration, whereas an ordinary swivel, if damaged by grit, has to be
thrown away as useless.

[Illustration]

For meals, where a steam-kettle is not used, it is the best policy to have
a cistern holding about 1½ pints for each man, and to boil this with a
gas-burner. The lighting of the burner at a specified time may be deputed