lay forms modeled up ready to receive the patches of brown paper
on the surface are shown in Figs. 6 and 7.

A German fluted armor used at the beginning of the sixteenth
century is shown in Fig. 8. The breastplate and tassets of this
armor are supposed to be in one piece, but for convenience in
making it will be found best to make them separately and then glue
them together after they are taken from the model. A narrow
leather belt placed around the armor will cover the joint. Fluted
armor takes its name from a series of corrugated grooves, 1/2 in.
in depth, running down the plate. A piece of board, cut into the
shape shown in Fig. 9, will be very useful for marking out the
fluted lines.

** Home-Made Hand Vise [280]

A vise for holding small articles while filing can be made as
shown in the illustration. The vise consists of three pieces of
wood, two for the jaws and one a wedge. The hinge for connecting
the two jaws is made of four small screw eyes, two in each jaw.
When locating the place for the screw eyes, place the two in one
jaw so they will fit between the two of the other jaw. Put a nail
through the eyes when the jaws are matched together and they are
ready for the wedge in clamping the article to be filed.
--Contributed by John G. Buxton, Redondo Beach, Calif.

[Illustration: Hand Vise]

** Detector for Slight Electrical Charges [281]

A thin glass bottle is thoroughly cleaned and fitted with a rubber
stopper. A hole is made through the center of the stopper large
enough to admit a small brass rod. The length of this rod will be
governed by the shape of the bottle, but 3-1/2 in. will be about
right. The bottom of the rod is bent and two pieces of aluminum
foil, each about 1/4 in. wide and 1/2 in. long, are glued to it.
The two pieces of foil, fastened to the rod, are better shown in
Fig. 2. Fasten a polished brass ball to, the top of the rod, and
the instrument is ready for use. Place the article which you wish
to test near the ball, and if it holds a

[Illustration: Aluminum Foil in a Bottle]

slight electrical charge, the two pieces of foil will draw
together. If it does not hold a charge, the foils will not move.
--Contributed by Ralph L. La Rue, Goshen, N. Y.

** Fishing through Ice with a Tip-Up [281]

The tip-up, used for signaling the fisherman when a fish is
caught, is made of a 1/4-in. pine board, about 15 in. long, 2-1/2
in. wide at one end and narrowing down to about 1 in a