Unto the Right Honourable, the Lords of Council and Session, the claim of John Lord Gray, and Margaret Lady Gray his wife, heritable keepers of the water of Tay, and of the rivers, waters and burns running into the same, for their respective interest; made and entered pursuant to an act 20th year of His Present Majesty, entituled, an act for taking away and abolishing the heritable jurisdictions in that part of Great Britain called Scotland, and for making satisfaction to be proprietors thereof, ... [electronic resource].