illuminant. But for the fact that this gas light gives a little more green
and less blue in its composition, it would be the same in quality and
practically the same in intensity. This light from the gas is almost absent
during welding, being lost with the addition of the extra oxygen needed to
produce the welding heat. The light that is dangerous comes from the molten
metal which flows under the torch at a bright white heat.

Goggles for protection against this light and the heat that goes with it
may be secured in various tints, the darker glass being for welding and
the lighter for cutting. Those having frames in which the metal parts do
not touch the flesh directly are most desirable because of the high
temperature reached by these parts.

_Gloves._--While not as necessary as are the goggles, gloves are a
convenience in many cases. Those in which leather touches the hands
directly are really of little value as the heat that protection is desired
against makes the leather so hot that nothing is gained in comfort. Gloves
are made with asbestos cloth, which are not open to this objection in so
great a degree.

[Illustration: Figure 9.--Frame for Welding Stand]

_Tables and Stands._--Tables for holding work while being welded
(Figure 9) are usually made from lengths of angle steel welded together.
The top should be rectangular, about two feet wide and two and one-half
feet long. The legs should support the working surface at a height of
thirty-two to thirty-six inches from the floor. Metal lattice work may be
fastened or laid in the top framework and used to support a layer of
firebrick bound together with a mixture of one-third cement and two-thirds
fireclay. The piece being welded is braced and supported on this table with