With Practical Instructions in the Art for persons wishing to learn without an Instructor. Containing a Description of Tools and Apparatus used, and Explaining the Manner of Engraving the Various Classes of Work; also a History of the Art from its Origin to the Present time. By WILLIAM A. EMERSON, Wood Engraver. New Edition. Illustrated. Price $1.00. * * * * * THE STARS AND THE EARTH; Or, Thoughts upon Space, Time, and Eternity. With an Introduction by THOMAS HILL, D.D., LL.D., late President of Harvard University. Cloth, 50 cents. * * * * * _Sold by all Booksellers and Newsdealers, or sent by mail postpaid on receipt of price. Catalogues mailed free._ LEE AND SHEPARD PUBLISHERS, 47 FRANKLIN STREET, BOSTON. YOUNG FOLKS' HEROES OF HISTORY. By GEORGE MAKEPEACE TOWLE. Handsomely Illustrated. Price per vol., $1.25. Sets in neat boxes. * * * * * VASCO DA GAMA: HIS VOYAGES AND ADVENTURES. "Da Gama's history is full of striking adventures, thrilling incidents, and perilous situations; and Mr. Towle, while not sacrificing historical accuracy, has so skilfully used his materials, that we have a charmingly romantic tale."--_Rural New-Yorker._ * * * * * PIZARRO: HIS ADVENTURES AND CONQUESTS. "No hero of romance possesses greater power to charm the youthful reader than the conqueror of Peru. Not even King Arthur, or Thaddeus of Warsaw, has the power to captivate the imagination of the growing boy. Mr. Towle has handled his subject in a glowing but truthful manner; and we venture the assertion, that, were our children led to read such books as this, the taste for unwholesome, exciting, wrong-teaching boys' books--dime novels in books' clothing--would be greatly diminished, to the great gain of mental force and moral purpose in the rising generation."--_Chicago Alliance._ * * * * * MAGELLAN; OR, THE FIRST VOYAGE ROUND THE WORLD. "What more of romantic and spirited adventures any bright boy could want than is to be found in this series of historical biography, it is difficult to imagine. This volume is written in a most sprightly manner; and the life of its hero, Fernan Magellan, with its rapid stride from the softness of a petted youth to the sturdy courage and persevering fortitude of manhood, makes a tale of marvellous fascination."--_Christian Union._ * * * * * MARCO POLO: HIS TRAVELS AND ADVENTURES.