"I hope it blistered your hide," growled Buck.

"It made me nearly laugh myself to death," replied Bob. "But let me advise you, Buck, to make sure the next time that you get the right letter in the right envelope."

"What do you mean by that?" asked Buck, in apprehension.

"Only that I got the letter you meant for Carl Lutz," replied Bob.

"Maybe you've forgotten what you said, so I'll read the last paragraph,"

and, dwelling on every word, he read it over deliberately.

Before he had quite finished, Buck made a desperate grab at the letter, but Bob was too quick for him.

"No, you don't!" he exclaimed, as he folded it and put it carefully into his pocket. "That letter's going to cost you about two hundred dollars, for that's what it will cost to pony up for the broken window. We've got you dead to rights, and you'd better pay up and pay up quick. So long, Buck. And do be more careful next time to get the right letter in the right envelope."

With all his bl.u.s.ter knocked out of him, Buck slunk away. The boys were not surprised to learn in the next letter from home that the insurance company had been paid.

"Some excitement we have had here," remarked Bob. "Wonder if we'll ever have such strenuous times again."

"Sure," declared Joe promptly, and he was right, as we shall see in the next volume of this series, to be called, "The Radio Boys with the Forest Rangers." In that volume we shall see how they fought a fire that came close to ending tragically.

After a good dinner, the boys lay sprawled out on the gra.s.s basking in the spring sunshine and utterly at peace with themselves and the world.

"Well, it's been hard work, but we've had pretty good luck at trailing a voice," observed Bob.

"Yes," agreed Joe with a grin, "and s-s-s-such a v-v-v-voice!"

And Jimmy whistled.

THE END

THE RADIO BOYS SERIES (Trademark Registered)

By ALLEN CHAPMAN Author of the "Railroad Series," Etc.

Ill.u.s.trated. Individual Colored Wrappers For Each Story.

Every Volume Complete in Itself.

A new series for boys giving full details of radio work, both in sending and receiving--telling how small and large amateur sets can be made and operated, and how some boys got a lot of fun and adventure out of what they did. Each volume from first to last is so thoroughly fascinating, so strictly up-to-date and accurate, we feel sure all lads will peruse them with great delight.

Each volume has a Foreword by Jack Binns, the well-known radio expert of the New York Tribune.

THE RADIO BOYS' FIRST WIRELESS; Or, Winning the Ferberton Prize.

THE RADIO BOYS AT OCEAN POINT; Or, The Message That Saved the Ship.

THE RADIO BOYS AT THE SENDING STATION; Or, Making Good in the Wireless Room.

THE RADIO BOYS AT MOUNTAIN Pa.s.s; Or, The Midnight Call for a.s.sistance.

THE RADIO BOYS TRAILING A VOICE; Or, Solving a Wireless Mystery.

THE RADIO BOYS WITH THE FOREST RANGERS; Or, The Great Fire on Spruce Mountain.

THE RADIO BOYS WITH THE ICEBERG PATROL; Or, Making Safe the Ocean Lanes.

Grosset & Dunlap, Publishers, New York

THE TOM SWIFT SERIES By VICTOR APPLETON

Uniform Style of Binding.

Individual Colored Wrappers For Each Story.

Every Volume Complete in Itself.

Every boy possesses some form of inventive genius. Tom Swift is a bright, ingenious boy and his inventions and adventures make the most interesting kind of reading.

TOM SWIFT AND HIS MOTOR CYCLE TOM SWIFT AND HIS MOTOR BOAT TOM SWIFT AND HIS AIRSHIP TOM SWIFT AND HIS SUBMARINE BOAT TOM SWIFT AND HIS ELECTRIC RUNABOUT TOM SWIFT AND HIS WIRELESS MESSAGE TOM SWIFT AMONG THE DIAMOND MAKERS TOM SWIFT IN THE CAVES OF ICE TOM SWIFT AND HIS SKY RACER TOM SWIFT AND HIS ELECTRIC RIFLE TOM SWIFT IN THE CITY OF GOLD TOM SWIFT AND HIS AIR GLIDER TOM SWIFT IN CAPTIVITY TOM SWIFT AND HIS WIZARD CAMERA TOM SWIFT AND HIS GREAT SEARCHLIGHT TOM SWIFT AND HIS GIANT CANNON TOM SWIFT AND HIS PHOTO TELEPHONE TOM SWIFT AND HIS AERIAL WARSHIP TOM SWIFT AND HIS BIG TUNNEL TOM SWIFT IN THE LAND OF WONDERS TOM SWIFT AND HIS WAR TANK TOM SWIFT AND HIS AIR SCOUT TOM SWIFT AND HIS UNDERSEA SEARCH TOM SWIFT AMONG THE FIRE FIGHTERS TOM SWIFT AND HIS ELECTRIC LOCOMOTIVE TOM SWIFT AND HIS FLYING BOAT TOM SWIFT AND HIS GREAT OIL GUSHER

Grosset & Dunlap, Publishers, New York

THE OUTDOOR CHUMS SERIES By CAPTAIN QUINCY ALLEN

The outdoor chums are four wide-awake lads, sons of wealthy men of a small city located on a lake. The boys love outdoor life, and are greatly interested in hunting, fishing, and picture taking. They have motor cycles, motor boats, canoes, etc., and during their vacations go everywhere and have all sorts of thrilling adventures. The stories give full directions for camping out, how to fish, how to hunt wild animals and prepare the skins for stuffing, how to manage a canoe, how to swim, etc.

Full of the spirit of outdoor life.

THE OUTDOOR CHUMS Or The First Tour of the Rod, Gun and Camera Club.

THE OUTDOOR CHUMS ON THE LAKE Or Lively Adventures on Wildcat Island.

THE OUTDOOR CHUMS IN THE FOREST Or Laying the Ghost of Oak Ridge.

THE OUTDOOR CHUMS ON THE GULF Or Rescuing the Lost Balloonists.

THE OUTDOOR CHUMS AFTER BIG GAME Or Perilous Adventures in the Wilderness.

THE OUTDOOR CHUMS ON A HOUSEBOAT Or The Rivals of the Mississippi.

THE OUTDOOR CHUMS IN THE BIG WOODS Or The Rival Hunters at Lumber Run.

THE OUTDOOR CHUMS AT CABIN POINT Or The Golden Cup Mystery.