Wolfenbuttel. It consists of nine books treating of plants, elements, trees, stones, fishes, birds, quadrupeds, reptiles, metals, printed in Migne as "Subtilitatum Diversarum Naturarum Libri Novem". In 1859, Jessen succeeded in obtaining from Copenhagen a manuscript entitled "Hildegardis Curae et Causae", and on examination felt satisfied that it was the second medical work of the saint. It is in five books and treats of the general divisions of created things, of the human body and its ailments, of the causes, symptoms, and treatment of diseases. "38 Solutiones Quaestionum" are answers to questions proposed by the monks of Villars through Gilbert of Gembloux on several texts of Scripture (P.L., loc. cit.). "Explanatio Regulae S. Benedicti", also called a revelation, exhibits the rule as understood and applied in those daysby an intelligent and mild superior. "Explanatio Symboli S. Athanasii", an exhortation addressed to her sisters in religion. The "Revelatio Hildegardis de Fratribus Quatuor Ordinum Mendicantium", and the other prophecies against the Mendicants, etc., are forgeries. The "Speculum futurorum temporum" is a free adaptation of texts culled from her writings by Gebeno, prior of Eberbach (Pentachronicon, 1220). Some would impugn the genuineness of her writings, among others Preger in his "Gesch. der deutchen Mystik", 1874, but without sufficient reason. (See Hauck in "Kirchengesch. Deutschl.", IV,398 sqq.). Her correspondence is to be read with caution; three letters from popes have been proved spurious by Von Winterfeld in "Neue Archiv", XXVII, 297.

The first biography of St. Hildegard was written by the contemporary monks Gottfried and Theodoric. Guibert of Gembloux commenced