--if you can quote your old
prosody,

"O datur ambiguis," etc.

with much more certainty than you can serve up your Horace; if in fine,
jingles and alliterations, wise and otherwise, have stayed with you,
while solid and serviceable information has faded away, you may be
certain that here is the key to the enigma of memory.

You can apply it yourself in a hundred ways. If you wish to clinch in
your mind the fact that Mr. Love lives at 485 Dearborn Street, what is
more easy than to turn 485 into the words "rifle" and chain the ideas
together, say thus: "Love--happiness--good time--picnic--forest--wood
rangers--range--rifle range--_rifle_--fine weapon--costly weapon--dearly
bought--DEARBORN."

Or if you wish to remember Mr. Bowman's name, and you notice he has a
mole on his face which is apt to attract your attention when you next
see him, cement the ideas thus: "Mole, mark, target, archer, Bowman."

FACTS WORTH KNOWING.

HANDY FACTS TO SETTLE MANY ARGUMENTS

London plague in 1665.

Telephone invented 1861.

There are 2,750 languages.

Two persons die every second.

Sound moves 743 miles per hour.

Chinese invented paper 170 B.C.

A square mile contains 640 acres.

A barrel of pork weighs 200 pounds.

Hawks can fly 150 miles in one hour.

Watches were first constructed in 1476.

Chinese in United States in 1880, 105,613.

Rome was founded by Romulus, 752 B.C.

Gold was discovered in California in 1848.

Phonograph invented by T. A. Edison, 1877.

The first balloon ascended from Lyons, France, 1783.

The first fire insurance office in America, Boston, 1724.

Jet is found along the coast of Yorkshire, Eng., near Whitby.

Napoleon I. crowned emperor 1804; died at St. Helena, 1820.

Electric light invented by Lodyguin and Kossloff, at London, 1874.

Harvard is the oldest college in the United States: established 1638.

War declared with Great Britain, June 19, 1812; peace Feb. 18, 1815.

Until 1776 cotton spinning was performed by the hand spinning-wheel.

Measure 209 feet on each side and you will have a square acre within an
inch.

Postage stamps first came into use in England in the year 1840; in the
United States in 1847.

The highest range of mountains are the Himalayas, the mean elevation
being from 16,000 to 18,000 feet.

Envelopes were first used in 1839.

Telescopes were invented in 1590.

Iron horseshoes were made in 481.

A barrel of flour weighs 196 pounds