Pidoux, M.—Maeterlinck at home.—Bookman (New York), 1895, p. 104.
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Pilon, Edmond.—Maurice Maeterlinck, La Plume, 1st May, 1902.
Puttkamer, Alberta von.—Monna Vanna und der künstlerisch —philosophische Werdegang Maeterlincks.—Beilage zur Allgemeinen Zeitung, No. 236 f., 1902.
Rava, Maurice.—Maurice Maeterlinck, Poeta Filosofo.—Nuova Antologia, 1st Feb., 1897.
Rency, Georges.—Maurice Maeterlinck et Louis Dumont-Wilden.—La Vie Intellectuelle (Brussels), 15th Oct., 1912.
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