The table of contents was generated and does not appear in the book.

Obvious punctuation errors repaired.

Inconsistent hyphenation fixed.

P. 138: one of the most serious crisis -> one of the most serious crises.

P. 158: a gentlemen sung a sea-song -> a gentleman sung a sea-song.

P. 176: after a dicussion -> after a discussion.

P. 219: Lieutenants D. Forbes -> Lieutenant D. Forbes.