_PALL MALL GAZETTE._--"Remarkable for the fulness of its author's knowledge.... Nor does the interest of Mr. Hamblen's volume depend solely on its vivid account of sensational escapes and dramatic accidents, though there is no lack of exciting incidents of this kind in his story.... What charmed us chiefly in the story was the close and exact account of the everyday working of a great railroad.... There was not a page that we did not find full of interest and instruction. It was all real, and most of it new, while Mr. Hamblen's vivid and straightforward style does much to enhance the intrinsic merits of his narrative.... We venture to think that no one will be able to leave the breathless and realistic account of such an episode as the chase of the runaway engine--not a figment of the imagination, but a sober and hideous fact, accounted for and explained by the most intelligible of mechanical reasons--without a thrill of genuine excitement." _SCOTSMAN._--"Mr. Hamblen shows a mastery of detail, and is easy and fluent in American railwaymen's jargon, much of it more expressive than polite. His book is well written, instructive, and of thrilling interest. There are almost a score of capital illustrations." _DAILY MAIL._--"The pages are full of rough, but attractive, characters, forcible language, brakemen, locomotives, valves, throttles, levers, and fire-scoops; and the whole dashing record is casually humorous amid its inevitable brutalities, and is of its kind excellent." _ATHENÆUM._--"The story is vividly told, and decidedly well kept up with tales of hairbreadth escapes and collisions commendable for vigour and naturalness.... A book which holds the interest." _WORLD._--"Better worth reading than half the romances published, for it contains matter that is as interesting as it is absolutely novel." _ACADEMY._--"A monstrous entertaining little book. Open it anywhere and your luck will hardly fail you. And for real gripping adventure you begin to doubt whether any career is worthy to show itself in the same caboose with that of an 'engineer.'... His life is as full of adventure as a pirate's.... A valuable contribution to the literature that is growing around the Romance of Steam." _WESTMINSTER GAZETTE_.--"Singularly fascinating. It is just crammed with moving episodes and hair-raising adventures, all set down with a vivid and unadorned vigour that is a perfect example of the art of narration. The pulses quicken, the heart bounds, as we read." _DAILY CHRONICLE._--"A most interesting volume." 100,000 copies of this work have been sold Fcap. 8vo. 6s. THE CHOIR INVISIBLE By JAMES LANE ALLEN AUTHOR OF "SUMMER IN ARCADY," "A KENTUCKY CARDINAL," ETC.