1097.

[50] 'Acta Acad. St. Petersburgh,' 1780, part ii. pp. 84, 100.

[51] M. Broca has shown ('Journal de Physiologie,' tom. ii. p. 353) that
Buffon's experiments have been often misrepresented. Broca has collected
(pp. 390-395) many facts on the fertility of crossed dogs, wolves, and
jackals.

[52] 'De la Longevite Humaine,' par M. Flourens, 1855, p. 143. Mr. Blyth
says ('Indian Sporting Review,' vol. ii. p. 137) that he has seen in India
several hybrids from the pariah-dog and jackal; and between one of these
hybrids and a terrier. The experiments of Hunter on the jackal are well
known. See also Isid. Geoffroy St. Hilaire, 'Hist. Nat. Gen.,' tom. iii, p.
217, who speaks of the hybrid offspring of the jackal as perfectly fertile
for three generations.

[53] On authority of F. Cuvier, quoted in Bronn's 'Geschichte der Natur,'
B. ii. s. 164.

[54] W. C. L. Martin, 'History of the Dog,' 1845, p. 203. Mr. Philip P.
King, after ample opportunities of observation, informs me that the Dingo
and European dogs often cross in Australia.

[55] Rueppel, 'Neue Wirbelthiere von Abyssinien,' 1835-40; 'Mammif.,' s. 39,
pl. xiv. There is a specimen of this fine animal in the British Museum.

[56] Even Pallas admits this: _see_ 'Act. Acad. St. Petersburgh,' 1780, p.
93.

[57] Quoted by I. Geoffroy, 'Hist. Nat. Gen.,' tom. iii. p. 453.

[58] F. Cuvier, in 'Annales du Museum,' tom. xviii. p. 337; Godron, 'De
l'Espece,' tom. i. p. 342; and Col. Ham. Smith, in 'Naturalist's Library,'
vol. ix. p. 101.

[59] Isid. Geoffroy Saint Hilaire, 'Hist. des Anomalies,' 1832, tom. i. p.
660. Gervais, 'Hist. Nat. des Mammiferes,' tom. ii., 1855, p. 66. De
Blainville ('Osteographie, Canidae,' p. 137) has also seen an extra molar on
both sides.

[60] 'Osteographie, Canidae,' p. 137.

[61] Wuerzburger, 'Medecin, Zeitschrift,' 1860, B. i. s. 265.

[62] Mr. Yarell, in 'Proc. Zoolog. Soc.,' Oct. 8th, 1833. Mr. Waterhouse
showed me a skull of one of these dogs, which had only a single molar on
each side and some imperfect incisors.

[63] Quoted in 'The Veterinary,' London, vol. viii. p. 415.

[64] 'Hist Nat. General,' tom. iii. p. 448.

[65] W. Scrope, 'Art of Deer-Stalking,' p. 354.

[66] Quoted by Col. Ham. Smith in 'Naturalist's Library,' vol. x. p. 79.

[67] De Blainville, 'Osteographie, Canidae,' p. 134. F. Cuvier, 'Annales du
Museum,' tom. xviii. p. 342. In regard to mastiffs, see Col. Ham. Smith,
'Nat Lib.,' vol. x. p. 218. For t