Charles Kingsley (1855). “Westward ho!: The voyages and adventures of Sir Amyas Leigh, knight, of Burrough, in the county of Devon, in the reign of Her Most Glorious Majesty Queen Elizabeth”, p.180
Sir Arthur Conan Doyle (2014). “Sherlock Holmes Complete Collection With illustrated Adventures of Sherlock Holmes - 4 Novels, 56 Short Stories and 120+ illustrations”, p.1667, Ageless Reads