Ambiguous hyphens at the ends of lines were retained.
Some ditto marks have been replaced by the actual text.
Page [83]: In the illustration, “O” should be “C”.
Page [171]: There is no obvious closing quotation mark to match the opening mark at “of most unusual age and thickness”.
Page [192]: “Divided even between the ocean” may be a misprint for “evenly”.
Page [197]: No matching closing quotation mark for the opening mark at “the small bright spot”.
Page [222]: Transcriber added an opening quotation mark at “Down his back” to match the closing mark after “He was seen by every one on board.”
Page [230]: No matching closing quotation mark for the opening mark at “a whale of large size”.
Page [302]: Transcriber added an opening quotation mark at “About fifty years ago” to match the closing mark after “fed himself with the other.”
Page [372]: No matching opening quotation mark for the closing mark after “its lower extremity.”