The work was written apparently in October 1798 (Adv.MSS.31.5.1(ii), folio 11, 31.5.1(iii), folio 4). The writer does not identify himself, but, as a pencil note inside the front cover of Adv.MS.31.5.1(i) makes clear, was Sylvester Douglas, Baron Glenbarvie.

A plan of the proposed work is given at Adv.MS.31.5.1(i), folios 1-4, but the author does not adhere rigorously to it.

The leaves are written on the rectos, the versos being used as necessary for additions and alterations; they appear to have been originally strung or threaded together and after the completion of the work bound in three volumes, stamped IU on the spine.