is chained to this Earth, his planet home. His chain is
invisible, but the ball is always to be seen--the Earth itself. The
chain itself is apparently without weight, while the chain's ball
weighs about 7,000,000,000,000,000,000,000 tons!

(10)

(_Associated Sunday Magazine_)

IN TUNE WHEN OUT OF TUNE

BY JOHN WARREN

How many persons who own pianos and play them can explain why a
piano cannot be said to be in tune unless it is actually out of
tune?

(11)

(_Railroad Man's Magazine_)

MAKING STEEL RAILS

BY CHARLES FREDERICK CARTER

To make steel rails, take 2 pounds of iron ore, 1 pound of coke, 1/2
pound of limestone, and 41/2 pounds of air for each pound of iron to
be produced. Mix and melt, cast in molds, and roll to shape while
hot. Serve cold.

Rail-making certainly does seem to be easy when stated in its
simplest terms; it also seems attractive from a business standpoint.

(12)

(_Leslie's Weekly_)

WHAT ELECTRICITY MEANS TO YOU

ONE CENT'S WORTH OF ELECTRICITY AT TEN CENTS PER KILOWATT-HOUR WILL
OPERATE:

Sixteen candle-power Mazda lamp for five hours
Six pound flatiron 15 minutes
Radiant toaster long enough to produce ten slices of toast
Sewing machine for two hours
Fan 12 inches in diameter for two hours
Percolator long enough to make five cups of coffee
Heating pad from two to four hours
Domestic buffer for 11/4 hours
Chafing dish 12 minutes
Radiant grill for 10 minutes
Curling iron once a day for two weeks
Luminous 500 watt radiator for 12 minutes

Hardly as old as a grown man, the electrical industry--including
railways, telephones and telegraphs--has already invested
$8,125,000,000 in the business of America. Its utility companies
alone pay Uncle Sam $200,000,000 every year for taxes--seven out of
every ten use it in some form every day. It is unmistakably the most
vital factor to-day in America's prosperity. Its resources are
boundless. As Secretary of the Interior Lane expresses it, there is
enough hydro-electric energy running to waste to equal the daily
labor of 1,800,000,000 men or 30 times our adult population.

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