640--The Message in Blue; or, Nick Carter's Clue to a Vast Conspiracy.

641--A Dream of Empire; or, Nick Carter and the Queen of Conspirators.

Motor Matt's Promise — Part 75

642--The Detective's Disappearance; or, Nick Carter is Saved by Adelina.

Motor Matt's Promise — Part 75

643--The Midnight Marauders; or, Nick Carter's Telephone Mystery.

Motor Matt's Promise — Part 75

644--The Child of the Jungle; or, Nick Carter's Ingenious Ruse.

645--Nick Carter's Satanic Enemy; or, The Case of an Easy Mark.

646--Three Times Stolen; or, Nick Carter's Strange Clue.

647--The Great Diamond Syndicate; or, Nick Carter's Cleverest Foes.

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The boys who want to learn something from what they read, as well as to be interested by it, will never find another publication that will satisfy them so well as MOTOR STORIES. "Motor Matt" is not an impossible boy character. He is simply a youth who has had considerable training in a machine shop where motors of all kinds were repaired, and who is possessed of a genius for mechanics. His sense of right and wrong is strongly developed, and his endeavors to insure certain people a square deal, lead him into a series of the most astonishing, but at the same time the most natural adventures that ever befell a boy.