That work must be held together until the solder sets or turns gray, as it may spring apart while the solder is molten.

These are all very simple facts and should not be difficult to remember.

To continue with the practice piece: As soon as the solder has run in and around one end of the practice joint, remove the copper and solder the joint at the other end of the piece. As these joints are small, they should heat up and solder very quickly. One heating of the copper should do for both joints, but be sure that the copper is hot enough before you try the second joint.

If difficulty is experienced in making your first joint and it does not stick together, apply more flux and try again.

The handle may be soldered to the biscuit cutter in the same manner after the practice piece is successfully completed.

Another Method of Applying Solder.—Sometimes bits of solder may be cut from the strip of wire solder and placed in the joint to be soldered. The hot soldering copper is then used to melt the solder into the joint. The joint must be well fluxed before the solder is placed in position.

The end of a strip of wire solder is sometimes held against the point of a hot copper as it is moved along a joint to be soldered. The solder is fed against the point of the hot copper as it melts into the joint.

Both of the above methods will be found advantageous when a gaping joint is to be filled with solder and it is desirable to apply a quantity of solder in one place.