[159]. Principles of Psychology, vol. i., § 215.
[160]. For some curious observations on this point see especially Moreau (of Tours), Psychologie morbide, pp. 264-278.
[161]. See Danville, Psychologie de l’amour, ch. vi., for a detailed discussion of this question, which the author also answers in the negative.
[162]. Dallemagne, Dégénérés et Déséquilibrés, p. 327.
[163]. Traité des Passions, sec. 69.
[164]. As all the emotions to be enumerated in this chapter have been already—or are about to be—studied separately, they will only be mentioned briefly, by way of example, and in order to illustrate the work of the mind in the creation of composite forms.
[165]. Sibbern’s Psychologie (1856), having been published in Danish, is only known to me through extracts quoted by his compatriots, Höffding (Psychologie, 2nd German ed., pp. 330, 331) and Lehmann (Hauptgesetze, pp. 247 et seq.). These two authors may also be consulted with advantage on this question.
[166]. Sergi, Piacere e Dolore, pp. 210 et seq.
[167]. W. James, Psychology, ii. pp. 435-437.
[168]. For the general study of this question see Espinas, Les Sociétés Animales, 2nd ed. (1878), and Ed. Perrier, Les Colonies Animales.