Gives a summary of information obtained from analyses of Turner's painting materials in oils and watercolor. Turner's palette in watercolor expanded during the 1790s from a very limited range, and was used in oils with little modification. Initially he used traditional pigments such as orpiment, smalt, and azurite, though he quickly adapted newly-made pigments for use in oil, often for major portions of a work; strontium yellow in 1810, pale lemon chrome in 1814, viridian in 1842-1843. Red and yellow organic pigments were used more often in watercolor than in oil, while inorganic pigments such as vermilion and synthetic varnishes were used in both media. Painting mediums are discussed. Linseed oil and linseed modified with wax and/or resin have been found. Sketches were painted exclusively in linseed oil.