[331] Parent-Duchatelet, “The Moral Corruption of the Female Sex in Paris,” vol. ii., p. 234 (Leipzig, 1837). Similarly, Julius Donarth remarks (“The Beginnings of the Human Spirit,” p. 19; Stuttgart, 1898): “Syphilis and alcoholism can by social arrangement and carefully adapted measures be suppressed just as much as plague and cholera.”

[332] The literature of this subject is very extensive. In addition to a comprehensive work dealing with the older literature, by J. K. Proksch, “The Prevention of Venereal Diseases” (Vienna, 1872), I must mention the following: E. Lang, “The Prevention of Venereal Diseases” (Vienna, 1894); M. Joseph, “Prophylaxis of Cutaneous and Venereal Diseases” (Munich, 1900); Neuberger, “The Prophylaxis of Venereal Diseases,” pp. 35-37 (Munich and Berlin, 1904); Felix Block, “How shall We protect Ourselves against Venereal Diseases and their Evil Consequences?” second edition (Leipzig, 1905); E. Boureau, “Conseils Pratiques à la Jeunesse pour Éviter les Avaries” (Paris, 1905); Suarez de Mendoza, “Conseils de Prophylaxie Sanitaire et Morale” (Paris, 1906); same author, “ABC à l’Usage des Mères de Famille pour la Défense de Leurs Foyers contre les Grands Fléaux du XXe Siècle: Tuberculose, Avariose [= Syphilis], Neissérose [= Gonorrhœa], Alcoolisme, Mortalité Infantile” (Paris, 1905); same author, “Avariose des Innocents” (Paris, 1905).

[333] Cf. also the valuable remarks of Robert Hessen, “Cleanliness or Morality?” published in Die Zukunft, June 9, 1906, pp. 367-377 (also separately printed in Munich, 1906).

[334] Otto Neustätter, “The Public Recommendation of Protective Measures,” published in The Journal for the Suppression of Venereal Diseases, vol. v., No. 3, pp. 225-227 (Leipzig, 1905).

[335] H. Ferdy, “The History of the Cæcal Condom,” published in The Journal for the Suppression of Venereal Diseases, 1905, vol. iii., No. 4, pp. 144-147.

[336] Cf. in this connexion the admirable essay, distinguished by a critical spirit, of R. de Campagnolle, “The Value of the Modern Prophylaxis of Gonorrhœa by Means of Instillations,” published in The Journal for the Suppression of Venereal Diseases, 1904, vol. iii., Nos. 1-4, pp. 1-31, 51-115, 148 (with a complete bibliography).

[337] In place of these solutions, Cronquist (“Contributions to the Personal Prophylaxis against Gonorrhœa,” published in Medizinische Klinik, No. 10, 1906) recommends the use of little rods or bougies containing 2 per cent. of albargin, which melt from the body-heat when introduced into the urethra (these are sold under the trade name of “antigon-rods”); they are used, like the solutions, immediately after coitus. The advantage they possess is their greater durability.

[338] The same idea had already been advanced in Germany by Eduard Richter and S. Behrmann.

[339] E. Metchnikoff, “The Prophylaxis of Syphilis,” published in Medizinische Klinik, 1906, No. 15, pp. 372, 373. Cf. also Paul Maisonneuve, “Experimentation sur la Prophylaxie de la Syphilis” (Paris, 1906); and A. Neisser. “Experimental Research regarding Syphilis,” pp. 81-83 (Berlin, 1906).

[340] O. Neustätter, “The Public Recommendation of Protective Measures,” published in The Journal for the Suppression of Venereal Diseases, 1905, vol. iv., pp. 203-252.