3. Radio Boys in the Flying Service; or, Held for Ransom by Mexican Bandits--J.W. DUFFIELD

4. Radio Boys Under the Sea; or, The Hunt for the Sunken Treasure--J.W.

DUFFIELD

5. Radio Boys Cronies; or, Bill Brown's Radio--WAYNE WHIPPLE

6. Radio Boys Loyalty; or, Bill Brown Listens In--WAYNE WHIPPLE

Peggy Parson's Series

By ANNABEL SHARP

A popular and charming series of Girl's books dealing in an interesting and fascinating manner with the life and adventures of Girlhood so dear to all Girls from eight to fourteen years of age. Printed from large clear type on superior quality paper, multicolor jacket. Bound in cloth.

1. Peggy Parson Hampton Freshman

2. Peggy Parson at Prep School

The Aeroplane Series

By JOHN LUTHER LANGWORTHY

1. The Aeroplane Boys; or, The Young Pilots First Air Voyage

2. The Aeroplane Boys on the Wing; or, Aeroplane Chums in the Tropics

3. The Aeroplane Boys Among the Clouds; or, Young Aviators in a Wreck

4. The Aeroplane Boys' Flights; or, A Hydroplane Round-up

5. The Aeroplane Boys on a Cattle Ranch

The Girl Aviator Series

By MARGARET BURNHAM

Just the type of books that delight and fascinate the wide awake Girls of the present day who are between the ages of eight and fourteen years.

The great author of these books regards them as the best products of her pen. Printed from large clear type on a superior quality of paper; attractive multi-color jacket wrapper around each book. Bound in cloth.

1. The Girl Aviators and the Phantom Airship

2. The Girl Aviators on Golden Wings

3. The Girl Aviators' Sky Cruise

4. The Girl Aviators' Motor b.u.t.terfly.

Phil Bradley Mountain Boy's Series

By SILAS R. BOONE

These books describe with interesting detail the experience of a party of boys among the mountain pines. They teach the young reader how to protect themselves against the elements, what to do and what to avoid, and above all to become self-reliant and manly. There are five t.i.tles:

1. Phil Bradley's Mountain Boys; or, The Birch Bark Lodge.

2. Phil Bradley at the Wheel; or, The Mountain Boys' Mad Auto Dash.

3. Phil Bradley's Shooting Box; or, The Mountain Boys on Currituck Sound.

4. Phil Bradley's Snow-shoe Trail; or, The Mountain Boys in the Canadian Wilds.

5. Phil Bradley's Winning Way.

The American Boy's Sports Series

BY MARK OVERTON

These stories touch upon nearly every sport in which the active boy is interested. Baseball, rowing, football, hockey, skating, ice-boating, sailing, camping and fishing all serve to lend interest to an unusual series of books. There are the following four t.i.tles:

1. Jack Winters' Baseball Team; or, The Mystery of the Diamond.

2. Jack Winters' Campmates; or, Vacation Days in the Woods.

3. Jack Winters' Gridiron Chums; or, When the Half-back Saved the Day.

4. Jack Winters' Iceboat Wonder; or, Leading the Hockey Team to Victory.

Motor Boat Boys Series

By LOUIS ARUNDEL

1. The Motor Club's Cruise Down the Mississippi; or The Dash for Dixie.

2. The Motor Club on the St. Lawrence River; or Adventures Among the Thousand Islands.

3. The Motor Club on the Great Lakes; or Exploring the Mystic Isle of Mackinac.