175 a

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*(1)(A)

(2) Essays Scientific, Political & Speculative 1858— The Origin & Function of Music. p. 359.—

*(3) The Descent of Man. 1870 vol. 2. p 332.

The words quoted are from Professor Owen. — But we We now have good evidence that some Rodents animals quadrupeds far 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 Revd S. Lockwood in the American Naturalist Vol. V. December 1871. p. 761.

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Ch 4

* (9) (5) Naturgeschichte der Saeugethiere von Paraguay 1830 S. 46.

* (4) (4 A) (6) Quoted by Gratiolet, De la Physionomie 1865 p. 115.—

* (4 B) (7) (6A) Théorie Physiologique de La Musique Paris 1868 p 146. Helmholtz in this profound work has also fully discussed the relation of the form of the cavity of the mouth to the utterance production of vowel-sounds. to which