[39] E. and L. Selenka, Soninge Welt, Wiesbaden, 1896, p. 55. The cry is said to be less like a melody than a sort of exulting call. One of the Swiss hunters in the expedition said that the ape jodeled back to him.

[40] W. Preyer, Die Seele des Kindes, p. 56. See Miss Shinn’s Notes on the Development of the Child, p. 115.

[41] J. Sully, Studies of Childhood, London, 1896, p. 409.

[42] B. Perez, Ses trois premières années des enfant, p. 34.

[43] E. Gurney, The Power of Sound, London, 1880, p. 102.

[44] B. Sigismund, Kind und Welt, 1897, p. 60.

[45] Miss Shinn’s small niece displayed very little appreciation for rhythm. Loc. cit., 120.

[46] This instance is subsCituted for a parallel one of Professor Groos’s, as the point of the latter would of course vanish in the attempt to translate it.—Tr.

[47] See Gurney, op. cit., pp. 35, 306.

[48] Darwin, op. cit., vol. ii. p. 321.