Contains:

Report of the trial of four samples of sperm oil by Capt Taylor, 1830.

Report of Robert Stevenson to the Trustees for the Herring Fisheries, 1832.

Report of David Stevenson on Lighthouses in Shetland, 1854.

Report on temporary light on Unst, [David Stevenson] 1854.

Report on temporary light on Muckle Flugga, D and T Stevenson, 1854.

Costs of harbour lights, Peterhead and Pultneytowm, undated.

Comparative costs of French and Scottish lighthouse towers, undated.

Costs of lenses at several Scottish lighthouses, undated.