“The illustrations are full, and excellently engraved.”—­Phil.  Morning Post.

=Acoustics.=

THE WONDERS OF ACOUSTICS; or, THE PHENOMENA OF SOUND.  By R. RADAU.  With 110 illustrations.  One volume 12mo. Printed on tinted paper $1 50

For specimen illustration see page 27.

No overweight of technicalities encumber the author’s ample and exceedingly instructive disquisition; but by presenting the results of curious investigation, by anecdote, by all manner of striking illustration, and by the aid of numerous pictures, he throws a popular interest about one of the most suggestive and beautiful of the sciences.  The book opens with an attractive chapter on “Sound in Nature,” in which the language of animals, nocturnal life in the forests, and kindred subjects are discussed.  Among the topics treated of later in the work are such as “Effects of Sound, on Living Beings,” “Velocity of Sound,” “The Notes,” “The Voice, Music, and Science.”  This volume forms a valuable addition to the series.

=Bodily Strength and Skill.=

WONDERS OF BODILY STRENGTH AND SKILL.  Translated and enlarged from the French of GUILLAUME DEPPING, by CHARLES RUSSELL.  Illustrated with seventy engravings on wood, many of them full page.  One vol. 12mo. Printed on tinted paper $1 50

For specimen illustration see page 28.

This is decidedly one of the most interesting volumes of the Library of Wonders.  In it the author has collected, from every available source, anecdotes descriptive of the most remarkable exhibitions of Physical Strength and Skill, whether in the form of individual feats, or of national games, from the earliest ages down to the present time.  The author has simply endeavored to make a collection of “Wonders of Bodily Strength and Skill,” from the Literature of all countries, and if any of them may be assigned to the region of the improbable, he most respectfully refers doubting inquirers to the original sources.  The grace and skill displayed in the illustrations, which are numerous and striking, make the volume singularly attractive.

=Balloons.=

WONDERFUL BALLOON ASCENTS.  From the French of F. MARION.  With thirty illustrations on wood, many of them full page One volume 12mo. Printed on tinted paper $1 50

For specimen illustration see page 29.

This volume gives an interesting history of balloons and balloon voyages, written in an exceedingly readable and graphic style, which will commend itself to the reader.

The history of the balloon is fully narrated, from its first stages up to the present time, and the most memorable balloon voyages are herein described in a most thrilling manner.  The illustrations are exceedingly taken in character.

CRITICAL NOTICE.

“Written in a popular style and with illustrations that give completeness to the text,... beautifully illustrated, and will be a fascinating reading book, especially for the young,”—­London Bookseller.