Chapter II’s footnotes originally skipped number “3”. The omission is

not apparent in this eBook, in which all footnotes are in a single ascending sequence.

Ambiguous hyphens at the ends of lines were retained.

For consistency, all occurrences of “bow-foremost” and “stern-foremost” are hyphenated in this eBook.

Index not checked for proper alphabetization or correct page references.

End of Project Gutenberg's The Story of the Submarine, by Farnham Bishop