Robert Burns, James Currie (1848). “The Complete Works of Robert Burns: With an Account of His Life, and a Criticism on His Writings. To which are Prefixed, Some Observations on the Character and Condition of the Scottish Peasantry”, p.542
William Wordsworth, Adam Sedgwick (1842). “A complete guide to the Lakes, comprising minute directions for the tourist, with mr. Wordsworth's Description of the scenery of the country, &c. and Three letters upon the geology of the Lake district, by prof. Sedgwick”