[267] On Consanguinity in Marriage, in the 'Fortnightly Review,' 1865, p. 710; Hofacker, 'Ueber die Eigenschaften,' &c.
[268] Sir G. Grey's 'Journal of Expeditions into Australia,' vol. ii. p. 243; and Dobrizhoffer, 'On the Abipones of South America.'
[269] 'The Art of Improving the Breed,' p. 13.
[270] 'The Poultry Book,' by W. B. Tegetmeier, 1866, p. 245.
[271] 'Journal Royal Agricult. Soc.' 1846, vol. vii. p. 205; see also Ferguson on the Fowl, pp. 83, 317; see also 'The Poultry Book,' by Tegetmeier, 1866, p. 135, with respect to the extent to which cock-fighters found that they could venture to breed in-and-in, viz., occasionally a hen with her own son; "but they were cautious not to repeat the in-and-in breeding."
[272] 'The Poultry Book,' by W. B. Tegetmeier, 1866, p. 79.
[273] 'The Poultry Chronicle,' 1854, vol. i. p. 43.
[274] 'The Poultry Book,' by W. B. Tegetmeier, 1866, p. 79.
[275] 'The Poultry Chronicle,' vol. i. p. 89.
[276] 'The Poultry Book,' 1866, p. 210.