del,' s. 104. Compare,
also, the figures of the old Irish and the improved Irish breeds in
Richardson on 'The Pig,' 1847.

[163] Quoted by Isid. Geoffroy, 'Hist. Nat. Gen.,' tom. iii. p. 441.

[164] S. Sidney, 'The Pig,' p. 61.

[165] 'Schweineschaedel,' s. 2, 20.

[166] 'Proc. Zoolog. Soc.,' 1837, p. 23. I have not given the caudal
vertebrae, as Mr. Eyton says some might possibly have been lost. I have
added together the dorsal and lumbar vertebrae, owing to Prof. Owen's
remarks ('Journal Linn. Soc.,' vol. ii. p. 28) on the difference between
dorsal and lumbar vertebrae depending only on the development of the ribs.
Nevertheless the difference in the number of the ribs in pigs deserves
notice.

[167] 'Edinburgh New Philosoph. Journal,' April 1863. _See_ also De
Blainville's 'Osteographie,' p. 128, for various authorities on this
subject.

[168] Eudes-Deslongchamps, 'Memoires de la Soc. Linn. de Normandie,' vol.
vii., 1842, p. 41. Richardson, 'Pigs, their Origin, &c.,' 1847, p. 30.
Nathusius, 'Die Racen des Schweines,' 1860, s. 54.

[169] D. Johnson's 'Sketches of Indian Field Sports,' p. 272. Mr. Crawfurd
informs me that the same fact holds good with the wild pigs of the Malay
peninsula.

[170] For Turkish pigs, _see_ Desmarest, 'Mammalogie,' 1820, p. 391. For
those of Westphalia, _see_ Richardson's 'Pigs, their Origin,' &c., 1847, p.
41.

[171] With respect to the several foregoing and following statements on
feral pigs, _see_ Roulin, in 'Mem. presentes par divers Savans a l'Acad.,'
&c., Paris, tom. vi., 1835, p. 326. It should be observed that his account
does not apply to truly feral pigs; but to pigs long introduced into the
country and living in a half-wild state. For the truly feral pigs of
Jamaica, _see_ Gosse's 'Sojourn in Jamaica,' 1851, p. 386; and Col.
Hamilton Smith, in 'Nat. Library,' vol. ix. p. 93. With respect to Africa,
_see_ Livingstone's 'Expedition to the Zambesi,' 1865, p. 153. The most
precise statement with respect to the tusks of the West Indian feral boars
is by P. Labat (quoted by Roulin); but this author attributes the state of
these pigs to descent from a domestic stock which he saw in Spain. Admiral
Sulivan, R.N., had ample opportunities of observing the wild pigs on Eagle
Islet in the Falklands; and he informs me that they resembled wild boars
with bristly ridged backs and large tusks. The pigs which have run wild in
the province of Buenos Ayres (Rengger, 'Saeugethiere,' s. 331)