INTRODUCTION.
My Dear Boys: "The Rover Boys on Land and Sea," is a complete story in itself, but forms the seventh volume of the "Rover Boys Series for Young Americans."
As I mentioned in a previous volume of this series, when I began this set of books I had in mind to write no more than three volumes, re lating the adventures of Dick, Tom, and Sam Rover, at home, at school, and elsewhere. But the publication of "The Rover Boys at School," "The Rover Boys on the Ocean," and "The Rover Boys in the Jungle," immediately called for more stories of the same sort, so year after year I have followed with "The Rover Boys out West," "The Rover Boys on the Great Lakes," "The Rover Boys in the Mountains," and now the volume before you, which relates the adventures of the three brothers, and some of their friends and enemies, on the sea and on a number of far away islands, where, for a time, all lead a sort of Robinson Crusoe life.
In writing this tale I had in mind not alone to
