Ruskin's revised catalogue of 300 works for the instruction of undergraduates and his notes on the use of particular examples.
Samuel Richardson, senior
Ruskin, John, Catalogue of the Educational Series (London: Spottiswoode, 1874), cat. Educational no. 200
Macandrew, Hugh, Ashmolean Museum Oxford: Catalogue of the Collection of Drawings, iii, Italian Schools: Supplement (Oxford: Clarendon Press, 1980), no. A82, p. 210
Ruskin, John, ‘The Ruskin Art Collection at Oxford: Catalogues, Notes and Instructions’, Edward T. Cook and Alexander Wedderburn, eds, The Works of John Ruskin: Library Edition, 39 (London: George Allen, 1903-1912), 21, cat. Educational no. 200