See The Diary and Letters of Gouverneur Morris (2 vols., New York, '888), edited by Anne Cary Morris; Jared Sparks, Life of Gouverneur Morris (3 vols., Boston, 1832), the first volume being a biography and the second and third containing Morris's miscellaneous writings and addresses; and Theodore Roosevelt, Gouverneur Morris (Boston, 1888), in the "American Statesmen" series.
Castle Cary covers nearly four acres: its ramparts contain massive and well-dressed masonry; its interior buildings, though they agree in material, do not altogether agree in plan with those of Bar Hill, and its north face falls in line with the frontier wall.
In Scotland excavation has been more active, in particular at the forts of Birrens, Newstead near Melrose, Lyne near Peebles, Ardoch between Stirling and Perth, and Castle Cary, Rough Castle and Bar Hill on the wall of Pius.
Of his other writings on marine zoology, most are contained in the bulletins and memoirs of the museum of comparative zoology; but he published in 1865 (with Elizabeth Cary Agassiz, his stepmother) Seaside Studies in Natural History, a work at once exact and stimulating, and in 1871 Marine Animals of Massachusetts Bay.
The surrounding scenery is famous for its richness of colour, especially in the grounds of Cary Court, and along "The Hobby," a road cut through the woods and overlooking the, sea.