The contents are as follows: Letters and papers, 1231-1641, mostly concerning the Church of Scotland (Adv.MS.29.2.8); Papers concerning lead mining in Scotland in the late 16th century, and political papers of the 17th century, [1584-1686] (Adv.MS.29.2.9);

Letters and papers, 1574-1604, mostly of the Regent, James Douglas, Earl of Morton, to David Borthwick of Lochill, Lord Advocate (Adv.MS.29.2.9a).