to wax or wane, the firmament is disturbed by winds which raise fogs from the sea and other waters.[458] [Sidenote: Divination in dreams.] If Hildegard resorts to a magic of her own in order to counteract the diabolical arts, and if she accepts a certain amount of astrological doctrine for all her censure of it, it is not surprising to find her in the _Causae et curae_ saying a word in favor of natural divination in dreams despite her rejection of augury and such arts. She believes that, when God sent sleep to Adam before he had yet sinned, his soul saw many things in true prophecy, and that the human soul may still sometimes do the same, although too often it is clouded by diabolical illusions.[459] But when the body is in a temperate condition and the marrow warmed in due measure, and there is no disturbance of vices or contrariety of morals, then very often a sleeper sees true dreams.[460] Hildegard’s own visions, as we have seen, came to her in her waking hours. FOOTNOTES: [338] Singer (1917) p. 19. [339] Migne, _Patrologia Latina_, vol. 197. This volume contains the account of Hildegard in the _Acta Sanctorum_, including the _Vita sanctae Hildegardis auctoribus Godefrido et Theodorico monachis_, etc.; the _Subtilitatum diversarum naturarum creaturarum libri novem_, as edited by Daremberg and Reuss; the _Scivias_ and the _Liber divinorum operum simplicis hominis_. I shall cite this in the following chapter simply as _Migne_ without repeating the number of the volume. Pitra, _Analecta sacra_, vol. VIII (1882). This volume contains the only printed edition of the _Liber vitae meritorum_, pp. 1-244,--Heinemann, in describing a thirteenth century copy of it (MS 1053, S. Hildegardis liber meritorum vite) in 1886 in his Catalogue of Wolfenbüttel MSS, was therefore mistaken in speaking of it as “unprinted,”--an imperfect edition of the _Liber compositae medicinae de aegritudinum causis signis atque curis_, and other works by Hildegard. A better edition of the last named work is: _Hildegardis causae et curae_, ed. Paulus Kaiser, Leipzig, Teubner, 1903. Earlier editions of the _Subtilitates_ were printed at Strasburg by J. Schott in 1533 and 1544 as follows: _Physica S. Hildegardis elementorum fluminum aliquot Germaniae metallorum leguminum fructuum et herbarum arborum et arbustorum piscium denique volatilium et animantium terrae naturas et operationes IV libris mirabili experientia posteritati tradens_, Argentorati, 1533. _Experimentarius medicinae continens Trotulae curandarum aegritudinum muliebrum ... item quatuor Hildegardis de elementorum fluminum aliquot Germaniae metallorum ... herbarum piscium et animantium terrae naturis et operationibus_, ed. G. Kraut, 1544. F. A. Reuss, _De libris physicis S. Hildegardis commentatio historico-medica_, Würzburg, 1835.