Aberdeenshire Commissioners of Supply: Robertson's Map Papers - Letter from John Rickman to Mr. Ramsay regarding the surveying of the boundaries of the four Northern Highland Counties for the execution of the Road Assessment Act (1806) Letter from John Rickman, New Palace Yard, London, to Mr. Ramsay, informing him that the Commissioners for Highland Roads and Bridges have resolved to appoint a surveyor to ascertain the boundaries of the four Northern Highland counties in order better to execute the Road Assessment Acts. Requests that this is called to the attention of the annual general meeting of the heritors of Aberdeen so that boundaries that are uncertain or not generally known may be settled. 21 April 1806