Just a couple of comments. With regard to the taxonomy of the ship, CY is correct in that The Bounty was officially classified as an auxillary vessel, and that is how it would appear in official documents, but I think it is probable that there was not the same rigidity in common usage as we would expect today. So far as "Bligh's / "the Bounty's" log is concerned, bear in mind that there were many logs kept, the ships log, the Captains log, and the sailing masters log. Lieutenants were also required to keep logs, and the Admiralty also encouraged officers to keep "Journals", so it is quite possible that various museums around the world have one or other or even an unofficial copy made by the author prior to submission to the Admiralty. As I can't visit the Public Records Office etc. I can't confirm what is held officially, but the extract shown of the document held bt the Library of NSW reads far more like a journal than a log.

Pete M