William Cowper (1856). “The task, Table talk, and other poems: With critical observations of various authors on his genius and character, and notes, critical and illustrative”, p.186
James Shirley (1833). “The Dramatic Works and Poems of James Shirley, Now First Collected: The grateful servant. The traitor. Love's cruelty. Love in a maze. The bird in a cage. Hyde Park”, p.174