The Public Record Office possesses, among the archives of the Duchy of Lancaster, two wardrobe accounts, dealing with the expenses of Henry Earl of Derby's travels in the years 1390–3. The documents, unique of their kind, present an accurate picture of the means of transport and accommodation available to travellers in the later middle ages ; and, though lacking the personal, picturesque side of travel-memoirs, preserve for that very reason a truer picture of that kind of undertaking which provided so large a part of the interests and amenities of life.