The notebook contains: copies of James Steuart’s appointment to the office of Keeper of the King's Wardrobe, 1737 (folio 1); list of perquisites of the office (folio 3); order for drawing up inventories (folio 4 verso); copy of inventories, 1685, 1714, of the furniture in different departments of Holyroodhouse, such as the Wardrobe, Council Chamber, Exchequer, Session House, etc., (folio 8); and a history of the office, including copies of documents relating to it (folio 28 verso). Most of this material was published from another manuscript by A Francis Steuart in 'The plenishing of Holyrood House in 1714'.

There are some drawings on folios 45-47.

At the end, inverted, are various notes made by William Steuart, advocate, son of James, comprising a list of scholars at Canongate High School in 1759 (folio 1 inverted); arithmetical definitions and problems (folios 1, 126 verso inverted); notes on Greek (folio 13 inverted); shorthand (folio 88 verso inverted); and notes on chemistry lectures probably given by Dr Joseph Black in 1769 at Edinburgh University (folios 2 verso, 15-88, 89 verso-126 inverted).