[CONTENTS]

CHAPTERPAGE
[I.]A New Friend Made5
[II.]An Invention Described15
[III.]An Important Decision23
[IV.]Ned to the Rescue33
[V.]The Unlucky Story43
[VI.]His Enemies on the Trail54
[VII.]Ned Makes an Enemy62
[VIII.]The Plans Accepted71
[IX.]The Arrival of Trouble82
[X.]Heiny Pumpernick Dill91
[XI.]The Convertible Sausage Machine98
[XII.]Hank and Miles Meet Their Match106
[XIII.]Ready for Flight113
[XIV.]Heiny Overhears the Plot124
[XV.]The Burglar Trap132
[XVI.]The Lost Lever150
[XVII.]Off at Last!161
[XVIII.]Ned’s Terrible Peril169
[XIX.]The Disgruntled Cronies179
[XX.]Tom to the Rescue187
[XXI.]Saluting a Steamer194
[XXII.]An Old Friend202
[XXIII.]The Lost Plans211
[XXIV.]A Baffling Robbery220
[XXV.]Off to the Fair227
[XXVI.]An Unlucky Mishap237
[XXVII.]A Dash for Liberty248
[XXVIII.]A Dirigible in Danger258
[XXIX.]A Daring Rescue269
[XXX.]A Strange Meeting277
[XXXI.]Ned Comes into his Own283

The Boy Inventors’ Electric Hydroaeroplane.


[CHAPTER I.]
A NEW FRIEND MADE.

“Are either Mr. Chadwick or Mr. Jesson about?”

“Humph!” and the gangling, rather disagreeable-looking youth who had answered the summons to the door of the Boy Inventors’ workshop, gave a supercilious look over the dusty and worn, although carefully mended, clothes of the dark-eyed, dark-haired, slender youth who confronted him.

“What do you want to know that for, anyhow?” and upon the personal pronoun he placed a contemptuous emphasis.