-pump
_Dunderberg_ 63
IV Wherein We Meet Sharks, Alligators, and a Very Tough
Problem in Wrecking 71
V In Which the Author Puts on a Diving-suit and Goes
Down to a Wreck 78

THE BALLOONIST
I Here We Visit a Balloon Farm and Talk with the Man
Who Runs It 87
II Which Treats of Experiments in Steering Balloons 99
III Something About Explosive Balloons and the Wonders of
Hydrogen 110
IV The Story of a Boy Who Ran Away in a Big Balloon 117

THE PILOT
I Some Stirring Tales of the Sea Heard at the Pilot's
Club 130
II Which Shows How Pilots on the St. Lawrence Fight the
Ice-floes 141
III Now We Watch the Men Who Shoot the Furious Rapids at
Lachine 148
IV What Canadian Pilots Did in the Cataracts of the Nile 160

THE BRIDGE-BUILDER
I In Which We Visit a Place of Unusual Fears and Perils 173
II The Experience of Two Novices in Balancing Along
Narrow Girders and Watching the "Traveler" Gang 182
III Which Tells of Men Who Have Fallen from Great Heights 197

THE FIREMAN
I Wherein We See a Sleeping Village Swept by a River of
Fire and the Burning of a Famous Hotel 209
II What Bill Brown Did in the Great Tarrant Fire 222
III Here We Visit an Engine-house at Night and Chat with
the Driver 233
IV Famous Rescues by New York Fire-boats from Red-hot
Ocean Liners 241

THE AERIAL ACROBAT
I Showing That it Takes More Than Muscle and Skill to
Work on the High Bars 255
II About Double and Triple Somersaults and the Danger of
Losing Heart 264
III In Which the Author Tries His Hand with Professional
Trapeze Performers 272
IV Some Remarkable Falls and Narrow Escapes of Famous