icing alone. It consists of two cement slabs, one flat
and upright, the other curved and on the ground. The vertical slab
is fastened securely against a fence, barn or shed. The barn or
the shed is preferable, for if the slab is fastened to a fence,
the ball will bound over a great many times and much time will be
lost in finding it.

The player stands as far as he cares from the slabs and throws the
ball against the lower slab. The ball immediately rebounds to the
upright slab and returns with almost as great a force as it was
delivered. If the thrower does not throw the ball exactly in the
same spot each time, the ball will not rebound to the same place,
consequently the eye and muscles are trained to act quickly,
especially if the player stands within 15 or 20 ft. of the slabs
and throws the ball with great force.

This apparatus also teaches a person to throw accurately, as a
difference in aim of a few inches on the lower slab may cause the
ball to flyaway over the player's head on the rebound.
--Contributed by F. L. Oilar, La Fayette, Indiana.

** How to Mail Photographs [312]

Cut a piece of cardboard 1 in. longer and 1 in. wider than the
mount of the photograph and lay the picture on it in the center.
This allows a 1/2-in. border on all sides of the photograph. Punch
two holes 1 in. apart at A, B, C and D, Fig. 1, in the cardboard
border close to the edge of the picture. Put a string up through
the hole B, Fig. 2, then across the corner of the photograph and
down through the hole C and up through hole D, then to E, etc.,
until the starting point A is reached, and tie the ends.

The photograph will not get damaged, if it is covered with tissue
paper and placed with the face to the cardboard. The extension
border of cardboard prevents the edges of the mount from being
damaged and the corners

[Illustration: Back for Mailing Photo]

from wearing. Both cardboard and photograph are wrapped together
in paper, and the package is ready for mailing.
--Contributed by Earl R. Hastings, Corinth, Vt.

** A Mystifying Watch Trick [313]

Borrow a watch from one of the audience and allow the owner to
place it in the box, as shown in Fig. 1. This box should be about
3 in. long, 4 in. wide and 2-1/2 in. deep, says the Scientific
American. It should be provided with a hinged cover, M, with a
lock, N. The tricky part of this box is the side S, which is
pivoted at T by driving two short nails into it, one through