es with the Hectograph]

A hectograph is very simply and easily made and by means of it
many copies of writing can be obtained from a single original.
Make a tray of either tin or pasteboard, a little larger than the
sheet of paper you ordinarily use and about 1/2 in. deep. Soak 1
oz. of gelatine in cold water over night and in the morning pour
off the water. Heat 6-1/2 oz. of glycerine to about 200 deg. F. on
a water bath, and add the gelatine. This should give a clear
glycerine solution of gelatine.

Place the tray so that it is perfectly level and pour in the
gelatinous composition until it is nearly level with the edge of
the tray. Cover it so the cover does not touch the surface of the
composition and let it stand six hours, when it will be ready for
use.

Make the copy to be reproduced on ordinary paper with aniline ink;
using a steel pen, and making the lines rather heavy so they have
a greenish color in the light. A good ink may be made of methyl
violet 2 parts, alcohol 2 parts, sugar 1 part, glycerine 4 parts,
and water 24 parts. Dissolve the violet in the alcohol mixed with
the glycerine; dissolve the sugar in the water and mix both
solutions.

When the original copy of the writing is ready moisten the surface
of the hectograph slightly with a sponge, lay the copy face down
upon it and smooth down, being careful to exclude all air bubbles
and not shifting the paper. Leave it nearly a minute and raise one
corner and strip it from the pad, where will remain a reversed
copy of the inscription.

Immediately lay a piece of writing paper of the right size on the
pad, smooth it down and then remove as before. It will bear a
perfect copy of the original. Repeat the operation until the
number of copies desired is obtained or until the ink on the pad
is exhausted. Fifty. or more copies can be obtained from a single
original.

When through using the hectograph wash it off with a moist sponge,
and it will be ready for future use. If the surface is impaired at
any time it can be remelted in a water bath and poured into a tray
as before, if it has not absorbed too much ink.

** How to Make a Sailomobile [326]
By Frank Mulford, Shiloh, N. J.

I had read of the beach automobiles used on the Florida coast;
they were like an ice boat with a sail, except they had wheels
instead of runners. So I set to work to make something to take me
over the country roads.

I found and used seven fence pickets for the frame