[310] ‘The American Naturalist,’ Dec. 1869, p. 552.

[311] Pallas, ‘Spicilegia Zoologica,’ fasc. xiii. 1779, p. 18.

[312] Lamont, ‘Seasons with the Sea-Horses,’ 1861, p. 141.

[313] See also Corse (‘Philosoph. Transact.’ 1799, p. 212) on the manner in which the short-tusked Mooknah variety of the elephant attacks other elephants.

[314] Owen, ‘Anatomy of Vertebrates,’ vol. iii. p. 349.

[315] See Rüppell (in ‘Proc. Zoolog. Soc.’ Jan. 12, 1836, p. 3) on the canines in deer and antelopes, with a note by Mr. Martin on a female American deer. See also Falconer (‘Palæont. Memoirs and Notes,’ vol. i. 1868, p. 576) on canines in an adult female deer. In old males of the musk-deer the canines (Pallas, ‘Spic. Zoolog.’ fasc. xiii. 1779, p. 18) sometimes grow to the length of three inches, whilst in old females a rudiment projects scarcely half an inch above the gums.

[316] Emerson Tennent, ‘Ceylon,’ 1859, vol. ii. p. 275; Owen, ‘British Fossil Mammals,’ 1846, p. 245.

[317] Richardson, ‘Fauna Bor. Americana,’ on the moose, Alces palmata, p. 236, 237; also on the expanse of the horns ‘Land and Water,’ 1869, p. 143. See also Owen, ‘British Fossil Mammals,’ on the Irish elk, p. 447, 455.

[318] ‘Forest Creatures,’ by C. Boner, 1861, p. 60.

[319] See the very interesting paper by Mr. J. A. Allen in ‘Bull. Mus. Comp. Zoolog. of Cambridge; United States,’ vol. ii. No. 1, p. 82. The weights were ascertained by a careful observer, Capt. Bryant.