then lead No. 18 B &
S. double insulated wire wherever needed. The dynamo can also be
used as a motor,

[Illustration: Fig. 3]

and is wound for any voltage up to ten. The winding should
correspond to the voltage of the lamps which you desire to run.
However, if wound for 6 volts, one could run parallel series of
two 3-volt, 1-cp. lamps; making, as in Fig. 3, 11 series, or 22
lights. If wound for 10 volts, it would give 1-1/4 amperes and run
four 6-cp. lamps. Thus, it will be seen that any candle power lamp
can be operated by putting the proper number of lights in each
series, and running the series in parallel. So, to secure light by
this method, we simply turn on the water, and the water
consumption is not so great as might be imagined.

For the party who has electric light in his house there is still
an easier solution for the problem of power. If the lighting
circuit gives 110 volts he can connect eleven 10-volt lamps in
series. These will give 3 cp. each, and the whole set of 11 will
take one ampere of current, and cost about the same as a 32-cp.
lamp, or 1-1/4 cents per hour. Simply connect the miniature
circuit to an Edison plug, and insert in the nearest lamp socket.
Any number of different candle power lamps can be used providing
each lamp takes the same amount of current, and the sum of their
voltages equals the voltage of the circuit used. This arrangement
of small lights is used to produce a widely distributed, and
diffused light in a room, for display of show cases, and for
Christmas trees. Of all these sources of power the two last are
the most economical, and the latter of these two has in its favor
the small initial cost. These lamps are by no means playthings or
experiments, but are as serviceable and practical as the larger
lamps.
--Contributed by Lindsay Eldridge, Chicago.

** How to Make a New Language [105]

Anyone possessing a phonograph can try a very interesting and
amusing experiment without going to any expense. Remove the belt
and replace with a longer one, which can be made of narrow braid
or a number of strands of yarn. The new belt should be long enough
to allow crossing it, thus reversing the machine. This reverses
every sound on the record and changes it to such an extent that
very few words can be recognized.

** How to Make a Cup-and-Saucer Rack [105]

The rack is made of any suitable kind of wood, and the sides, A,
are cut just alike, or from one pattern. The shelve