[227] Philosophical Transactions, 1799, p. 40.
[228] See Bingley, loc. cit., vol. i., pp. 148-51.
[229] Hist. Nat., viii., 5.
[230] For these and other cases of vindictiveness, see Bingley, loc. cit., vol. i., pp. 156-8.
[231] Memoirs, vol. i., p. 448.
[232] Zoological Recreations, p. 315.
[233] Animal Biography, i., pp. 156-8.
[234] Anecdotes of Animals, p. 276.
[235] Habits and Instincts of Animals, p. 37.
[236] Reasoning Power of Animals, chap. iv.