href="#ulink_2207daf6-b777-5e4a-a089-817a6e17d88c">THE COSTERMONGER'S PUZZLE.
HOW A NUMBER THOUGHT OF OR OTHERWISE INDICATED MAY BE TOLD.
A NEW WAY OF MULTIPLYING BY 9.
TO REWARD THE FAVOURITES, AND SHOW NO FAVOURITISM.
LORD DUNDREARY'S FINGER PUZZLE TO COUNT ELEVEN FINGERS ON THE TWO HANDS.
UNIFORM RESULTS OF MULTIPLICATION.
TO ASCERTAIN A SQUARE NUMBER AT A GLANCE.
TO DISTINGUISH COINS BY ARITHMETICAL CALCULATION.
FRENCH VINGT-UN, OR ALBERT SMITH.
SIMPLE DECEPTIONS AND MINOR TRICKS.
CONJURING WITH AND WITHOUT SPECIAL APPARATUS.