[25] For numerous and interesting details on the resemblance of dogs and jackals, see Isid. Geoffroy St. Hilaire, 'Hist. Nat. Gén.,' 1860, tom. iii. p. 101. See also 'Hist. Nat. des Mammifères,' par Prof. Gervais, 1855, tom. ii. p. 60.
[26] Güldenstädt, 'Nov. Comment. Acad. Petrop.,' tom. xx., pro anno 1775, p. 449.
[27] Quoted by De Blainville in his 'Ostéographie, Canidæ,' pp. 79, 98.
[28] See Pallas, in 'Act. Acad. St. Petersburgh,' 1780, part ii. p. 91. For Algeria, see Isid. Geoffroy St. Hilaire, 'Hist. Nat. Gén.,' tom. iii. p. 177. In both countries it is the male jackal which pairs with female domestic dogs.
[29] John Barbut's 'Description of the Coast of Guinea in 1746.'
[30] 'Travels in South Africa,' vol. ii. p. 272.
[31] Selwyn, Geology of Victoria; 'Journal of Geolog. Soc.,' vol. xiv., 1858, p. 536, and vol. xvi., 1860, p. 148; and Prof McCoy, in 'Annals and Mag. of Nat. Hist.' (3rd series), vol. ix., 1862, p. 147. The Dingo differs from the dogs of the central Polynesian islands. Dieffenbach remarks ('Travels,' vol. ii. p. 45) that the native New Zealand dog also differs from the Dingo.
[32] 'Proceedings Zoolog. Soc.,' 1833, p. 112. See, also, on the taming of the common wolf, L. Lloyd, 'Scandinavian Adventures,' vol. i. p. 460, 1854. With respect to the jackal, see Prof. Gervais, 'Hist. Nat. Mamm.,' tom. ii. p. 61. With respect to the aguara of Paraguay, see Rengger's work.
[33] Roulin, in 'Mém. présent. par divers Savans,' tom. vi. p. 341.
[34] Martin, 'History of the Dog,' p. 14.