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

"The story from its inception, and through the twelve volumes (see Second Series), is a bewitching one, while the information imparted concerning the countries of Europe and the isles of the sea is not only correct in every particular, but is told in a captivating style. Oliver Optic will continue to be the boys' friend, and his pleasant books will continue to be read by thousands of American boys. What a fine holiday present either or both series of 'Young America Abroad' would be for a young friend! It would make a little library highly prized by the recipient, and would not be an expensive one."—Providence Press.

Young America Abroad. By Oliver Optic. Second Series. Six volumes. Illustrated. Any volume sold separately. Price per volume, $1.25.

1. Up the Baltic; or, Young America in Norway, Sweden, and Denmark.

2. Northern Lands; or, Young America in Russia and Prussia.

3. Cross and Crescent; or, Young America in Turkey and Greece.

4. Sunny Shores; or, Young America in Italy and Austria.

5. Vine and Olive; or, Young America in Spain and Portugal.

6. Isles of the Sea; or, Young America Homeward Bound.

"Oliver Optic is a nom de plume that is known and loved by almost every boy of intelligence in the land. We have seen a highly intellectual and world-weary man, a cynic whose heart was somewhat embittered by its large experience of human nature, take up one of Oliver Optic's books, and read it at a sitting, neglecting his work in yielding to the fascination of the pages. When a mature and exceedingly well-informed mind, long despoiled of all its freshness, can thus find pleasure in a book for boys, no additional words of recommendation are needed."—Sunday Times.