This is an excerpt from a parliamentary act concerning the entailed estates of John, Duke of Atholl. The document outlines provisions for exchanging certain discontiguous entailed lands in Perthshire (including Wester Kinnaird, Drumnacarff, Craignuisk, and other named properties) with lands belonging in fee to the Duke. The act establishes the legal framework and authority for these transactions while protecting the rights of heirs of entail.