One connection is made from the main to the upper binding-post,
which is in turn connected to one terminal of the coil, C, the
other coil terminal being attached to the frame. The other main
connection is made to the lower binding-post, which is also
connected to the brass ferrule, S, by soldering. The two
binding-posts are insulated from the frame the same as the ferrule
S. When using on a 110-volt circuit there must be some resistance
in connection, which may be had by using German silver wire, or a
water rheostat heretofore described.
--Contributed by Arthur D. Bradlev. Randolph, Mass.
** Irrigation [132]
The Mexican government has appropriated $25,000,000 for irrigation
work.
** How to Hang Your Hat on a Lead Pencil [133]
Take a smooth hexagon lead pencil, one without either rubber or
metal end, and place it against a door or window casing; then with
a firm, heavy pressure slide the pencil some 3 or 4 in. and it
will stay as if glued to the casing. You may now hang your hat on
the end of the pencil.
When you slide the pencil along the casing, do it without any
apparent effort, and it will appear to your audience as though you
had hypnotized it.
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