[507] F. Michel, 'Des Haras,' pp. 47, 50.
[508] Col. Hamilton Smith, Dogs, in 'Nat. Lib.,' vol. x. p. 103.
[509] Azara, 'Quadrupèdes du Paraguay,' tom. ii. p. 324.
[510] Sidney's edit. of Youatt, 1860, pp. 24, 25.
[511] 'Rural Economy of Yorkshire,' vol. ii. p. 182.
[512] Moll et Gayot, 'Du Bœuf,' 1860, p. 547.
[513] 'The India Sporting Review,' vol. ii. p. 181; 'The Stud Farm,' by Cecil, p. 58.
[514] 'The Horse,' p. 22.
[515] 'History of England,' vol. i. p. 316.
[516] 'Uber Beständigkeit der Arten.'