What Alexander Skinner presented was, it seems, the blank volume, cf. MS.3745. The music was almost certainly written by Duncan Campbell.
According to a note (folio ii) by Archibald Campbell, Secretary of the Music Committee of the Piobaireachd Society, Duncan Campbell left at least two manuscripts, one referred to simply as Duncan Campbell's Manuscript in the publications of the Piobaireachd Society, the other, this, an incomplete and probably unrevised copy of the first. The first has disappeared since 1910, when Archibald Campbell used it, but a copy of it came into the possession of Pipe-Major William Ross in 1948. It seems also to have been used by Donald Dow; see MSS.3750-3752.
Included in the volume, in addition to Archibald Campbell's note, there are: a letter of the depositor; a note by her husband; and an index by her sister-in-law, Lady Dorothea Ruggles Brise.