CONTENTS 1
1．A BOY AND HIS FATHER BECOMEh PARTNERS 1
2．TRAVELING IN THE JUNGLE 4
3．PESOS IN THE SEA 8
4．CALIFORNIA S GIANTS 12
5．MAN HUNTERS OF THE U.S.A 16
6．ICARUS 20
7．DANGER—KEEP OFF! 24
8．THE VANISHED CITY 28
9．EARLY DAYS OF THE MAIL 32
10．DEATH OF A GULL 36
11．TAMING THE ELEPHANT 40
12．WHY WE WALK IN CIRCLES 44
13．HE LED A USEFUL LIFE 48
14．WILD ANIMALS FACE TO FACE 52
15．SOLVING THE HOLDUP 56
16．THE BIG WIND 60
17．ARCTIC ADVENTURE 64
18．WHY STUDY MATH? 68
19．A HOLE-IN-THE-GROUND HOBBY 73
20．LIVING LIGHT 77
21．HOW STANLEY FOUND LIVINGSTONE 82
22．THE MYSTERIOUS MAN-OF-WAR 86
23．TRUE TALES OF PIRATE TREASURE 91
24．THE LITTLE PEOPLE 95
25．BRAVE BALLERINA 100
26．THE TREASURE OF SANIBEL ISLAND 105
27．MISSISSIPPI STEAMBOAT DAYS 110
28．NEW YORK S BIG DITCH 115
29．THE DAY THE BIG TOP BURNED 120
30．DANGER IN SPACE 125
31．TAME VOLCANOES 130
32．NORTH OF THE ARCTIC CIRCLE 135
33．18,000 FEET—AND NO PARACHUTE 140
34．SHE SIGNED DOLLAR BILLS 145
35．SLEEPWALKING—FACT OR FANCY? 151
36．THE WORLD OF THE WANDERER 156
37．TWO LOAVES OF BREAD 162
38．CLUMSY WORLD FOR LEFTY 167
39．ZENOBIA QUEEN OF THE EAST 173
40．BEHIND SING SING WALLS 179