“It has all the rapid movement of a play, and is at the same time full of piquant character-study. The personages of the story have life and thorough individuality--there is not a puppet among them. It has been said of one of them--the American ‘medium’--that he is simply a caricature; but those who have seen a certain erratic countryman of ours will recognize many of his curious traits.”--_N. Y. Tribune._ GARTH. A Novel. By JULIAN HAWTHORNE, author of “Bressant,” “Saxon Studies,” etc. 1 vol., 8vo. Paper covers, $1.00; cloth, $1.50. “‘Garth,’ is Mr. Julian Hawthorne’s most elaborate and pretentious book. It is on many accounts also his best book, though it contains nothing so good as the character of the hero in ‘Bressant.’ At least his genius is unmistakable. And we are disposed to venture the suggestion that, if ‘Garth’ had not been a serial, it would have been more compact and closely written, and so its situations more effective, its characters better sustained.”--_New York World._ THE ART OF ELECTRO-METALLURGY. Including all Known Processes of Electro-Deposition. By G. GORE, LL. D., F. R. S. 1 vol., 12mo. 391 pages. Illustrated. $2.50. “I have endeavored not only to make the book a treatise on the practical art of Electro-Metallurgy, but also to include an outline of the science of electro-chemistry, upon which that art is based; and I have also spared no trouble in order to make it as perfect as I could; the most complete portions are those which treat of the common methods of silvering, gilding, moulding; the deposition of copper, nickel, brass, iron, and tin; the special details of the art; and the accounts of such experiments and processes with the less common metals, as scientific investigators and practical inventors may be likely to further examine or practically apply.”--_Extract from Preface._ THE ELEMENTS OF MACHINE-DESIGN. An Introduction to the Principles which determine the Arrangement and Proportions of the Parts of Machines, and a Collection of Rules for Machine-Design. By W. CAWTHORNE UNWIN. 1 vol., 12mo. Illustrated. $1.50. “No labor has been spared in condensing into the smallest compass the information at the author’s disposal, and in endeavoring to render the treatment of the subject simple and clear. If the student’s path has in any degree been rendered easy, it is because a good deal of labor has been expended on the roadway.”--_Extract from Preface._ AFTER MANY DAYS. A Novel. By CHRISTIAN REID, author of “Morton House,” “Valerie Aylmer,” etc. 1 vol., 8vo. Paper covers, $1.00; cloth $1.50. “After Many Days” is marked by those characteristics that have made the name of Christian Reid distinguished--flowing style, charm and contrast of character, dramatic situations and effective development of plot. The scene is laid partly in the South and partly in England, while its narrative exhibits notable variety of incident and strength of interest.