1. Verrill, A. H., “The Real Story of the Whaler” (New York and London, 1916).
2. Clarke, R., “Discovery” Rep. 26, 281 (1954).
3. Beneden, van, and Gervais, P., “Osteographie des Cetacés vivantes et fossiles” (Paris, 1880).
4. Murdoch, W. G. B., “Modern Whaling and Bear Hunting” (London, 1917).
5. Clarke, R., Soap Perfum. Cosm. Tr. Rev., 22, 147 (1949).