Four Young Explorers; Or, Sight-Seeing in the Tropics

by Oliver Optic

All-Over-the-World Library. By Oliver Optic. First Series. Illustrated. Price per volume, $1.25.

1. A Missing Million; or, The Adventures of Louis Belgrave.

2. A Millionaire at Sixteen; or, The Cruise of the Guardian Mother.

3. A Young Knight Errant; or, Cruising in the West Indies.

4. Strange Sights Abroad; or, Adventures in European Waters.

All-Over-the-World Library. By Oliver Optic. Second Series. Illustrated. Price per volume, $1.25.

1. American Boys Afloat; or, Cruising in the Orient.

2. The Young Navigators; or, The Foreign Cruise of the "Maud."

3. Up and Down the Nile; or, Young Adventurers in Africa.

4. Asiatic Breezes; or, Students on the Wing.

All-Over-the-World Library. By Oliver Optic. Third Series. Illustrated. Price per volume, $1.25.

1. Across India; or, Live Boys in the Far East.

2. Half Round the World; or, Among the Uncivilized.

3. Four Young Explorers; or, Sight-Seeing in the Tropics.

(Other volumes in preparation.)

Young America Abroad: A Library of Travel and Adventure in Foreign Lands. By Oliver Optic. Illustrated by Nast and others. First Series. Six volumes. Any volume sold separately. Price per volume, $1.25.

1. Outward Bound; or, Young America Afloat.

2. Shamrock and Thistle; or, Young America in Ireland and Scotland.

3. Red Cross; or, Young America in England and Wales.

4. Dikes and Ditches; or, Young America in Holland and Belgium.

5. Palace and Cottage; or, Young America in France and Switzerland.

6. Down the Rhine; or, Young America in Germany.