ther parts of the Motor Outfits, it
will give a practical knowledge of motors that no other plan can give.

[Illustration: No. 2201]

These motors and motor outfits have been highly praised by electrical
experts and educators as being invaluable to students. They can do
everything the big motors can do, and if used with the rheostats,
reversers and other apparatus in the outfits, the student will have a
whole motor laboratory.

Why not get a motor that has brains and that can do tricks and
experiments? Any good motor will go when you turn on the power; but that
doesn't mean much when it comes to understanding things.

No. 2201--"St. J. Motor No. 1," with Wiring-Diagrams $1.35

If sent by mail, postage extra, shipping weight one pound.

"ST. J." ELECTRIC MOTOR OUTFIT

These outfits have been designed for students and others who want to do
real experimental work with motors, so as to get right down to the
bottom of the matter and thoroughly master the foundation principles of
the subject. It is simply astonishing to see how much can be learned
with one of these outfits, especially if the work be done as fully
detailed in "The Study of Electric Motors by Experiment." Every
electrical laboratory should have one of these sets, and the more you
know about motors the more you will appreciate an outfit of this kind.

Don't simply read about motors--get right down to the practical part of
it and experiment for yourself. Every experiment will settle an
important point in your mind.

ELECTRIC MOTOR OUTFIT No. 2226X contains everything needed for sixty
interesting and profitable experiments. With the improved apparatus that
we now give we feel that this is the most complete set ever sold for the
money. The following articles are included, packed in a wooden box:

THE "ST. J." MOTOR, fully described on another page, is well called "A
motor that can do things."

THE FIVE-POINT RHEOSTAT is used as a "starting-box" in the
armature-circuit and in various other ways to regulate speed. (See cut.)

THE ELEVEN-POINT RHEOSTAT is used to regulate the "field-magnetism," as
one method of speed-regulation, and for other purposes. (See cut.)

THE DOUBLE-KEY CURRENT REVERSER is, really, a key, a two-point switch,
and a current-reverser combined. On this account it can be used in many
ways, shown in numerous wiring-diagrams. (See cut.)

THE HANDY CURRENT-DETECTOR is used as a current-detector and as a device
for studying the count