403 ([return])
[ ‘The Descent of Man,’ 1870, vol. ii. p. 332. The words quoted are from Professor Owen. It has lately been shown that some quadrupeds much lower in the scale than monkeys, namely Rodents, are able to produce correct musical tones: see the account of a singing Hesperomys, by the Rev. S. Lockwood, in the ‘American Naturalist,’ vol. v. December, 1871, p. 761.]
404 ([return])
[ Mr. Tylor (‘Primitive Culture,’ 1871, vol. i. p. 166), in his discussion on this subject, alludes to the whining of the dog.]
405 ([return])
[ ‘Naturgeschichte der Säugethiere von Paraguay,’ 1830, s. 46.]
406 ([return])
[ Quoted by Gratiolet, ‘De la Physionomie,’ 1865, p. 115.]
407 ([return])
[ ‘Théorie Physiologique de la Musique,’ Paris, 1868, P. 146. Helmholtz has also fully discussed in this profound work the relation of the form of the cavity of the mouth to the production of vowel-sounds.]