原文 (英語)

INTRODUCTION. MY DEAR BOYS: This volume, "The Rover Boys on the Great Lakes," is a complete story in itself, but forms the fifth volume of the Rover Boys Series for Young Americans. When first I started this series with "The Rover Boys at School," I had no idea of extending the line beyond three or four volumes. But the second book, "The Rover Boys on the Ocean," immediately called for a third, "The Rover Boys in the Jungle," and this finished, many boys wanted to know what would hap