[107] Strodtmann, H. Heines Leben und Werke, vol. i. p. 27 et seq., Berlin, 1873.
[108] Fisiologia del Amore.
[109] Les Femmes homicides, Paris, 1908. p. 39 et seq.
[110] "Beiträge zur Kenntnis der Lebens- und Entwicklungsbedingungen der Inder" ("Contributions to our Knowledge of the Conditions of Life and Development of the Natives of India"), Archiv für Rassen- und Gesellschaftsbiologie, 1907, p. 839 et seq.
[111] Archiv für Rassen- und Gesellschaftsbiologie, 1906, p. 916.
[112] We are irresistibly reminded, in this connexion, of the reputed higher morality of age as compared with youth, of which La Rochefoucauld says (Maxim 192): "When our vices leave us, we flatter ourselves that it is we who leave them."—Translator's Note.
[113] Esquirol refers to this in his great work on Mental Disorders.
[114] Die Sittlichkeitsverbrecher (Offenders against Sexual Morality). See also Vierteljahrsschrift für gerichtliche Medizin und offentliche Sanitätswesen, Third Series, xxix, 2.
[115] The custom of taking in a man as a night-lodger in crowded working-class tenements appears, unhappily, to be commoner in the large towns of Germany and Austria than it is in this country. See, for instance, Adelheid Popp's Jugendgeschichte einer Arbeiterin (3rd ed., Reinhardt, Munich, 1910, pp. 19, 20). But such lodgers are by no means unknown in the overcrowded quarters of English towns.—Translator's Note.
[116] Psychiatrische Vorlesungen, Leipzig, 1892, p. 41.