Introduction

My Dear Boys: This book is a complete story in itself, but forms the nineteenth volume in a line issued under the general title of "The Rover Boys Series for Young Americans."

As I have mentioned in several other volumes, this series was started a number of years ago with the publication of "The Rover Boys at School," "On the Ocean," and "In the Jungle." I am happy to say the books were so well liked that they were followed, year after year, by the publication of "The Rover Boys Out West," "On the Great Lakes," "In Camp," "On Land and Sea," "On the River," "On the Plains," "In Southern Waters," "On the Farm," "On Treasure Isle," "At College," "Down East," "In the Air," "In New York," and finally "In Alaska," where we last met the lads.

During all these adventures the Rover boys have been growing older. Dick is now married and conducting his father‘s business in New York City and elsewhere. ‘The fun-loving Tom and his sturdy younger brot

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