[Footnote 67: Hammond (_Treatise on Insanity_, p. 229) knew a gentleman who dreamed he was in heaven and surrounded by dazzling brilliance, awaking to find that the smouldering fire had flared up. Weygandt dreamed that he was gazing at 'living pictures' illuminated by magnesium light, and awoke to find that the morning sun had just appeared from behind clouds and was flooding the room with light. See also Parish, _Hallucinations and Illusions_, p. 52.] [Footnote 68: I have discussed erotic dreams in the study of 'Auto-erotism' in the first volume of my _Studies in the Psychology of Sex_ (third edition, revised and enlarged, 1910).] [Footnote 69: K. A. Scherner, _Das Leben des Traums_, 1861, pp. 187 _et seq._ Volkelt some years later (_Die Traum-Phantasie_, 1875, p. 74) pointed out the occurrence of somewhat similar vesical symbolisms (including in the case of women a filled knitting-bag) in dream life, though he regarded visions of water as the most usual indication in such dreams. Vesical dreams may, of course, contain other elements; see _e.g._ an example given by C. J. Jung, 'L'Analyse des Rêves,' _L'Année Psychologique_, 15th year, 1909, p. 165.] [Footnote 70: A typical dream of this kind, of sufficient importance to be embodied in history, occurred several thousand years ago to Astyages, King of the Medes, and has been recorded by Herodotus (Book 1. ch. 107).] [Footnote 71: In the study of Auto-erotism mentioned in a previous note I have brought forward dreams illustrating some of the points in the text, and have also discussed the analogies and contrasts between vesical and erotic dreams. The fact that nocturnal enuresis is associated with vesical dreams, though referred to by Buchan in his _Venus sine Concubitu_ more than a century ago, is still little known, but it is obviously a fact of clinical importance.] [Footnote 72: So, for instance, the asthmatic patient of Max Simon (_Le Monde des Rêves_, p. 40) who, during an attack, dreamed of sweating horses attempting to draw a heavy waggon uphill.] [Footnote 73: Forbes Winslow also recorded cases (_Obscure Diseases_, pp. 611 _et seq._), and many examples were brought together by Hammond (_Treatise on Insanity_, pp. 234 _et seq._). Vaschide and Piéron discuss the matter and bring forward thirteen cases (_La Psychologie du Rêve_, pp. 34 _et seq._). Féré recorded two cases in which dreams were the precursory symptoms of attacks of migraine (_Revue de Médecine_, 10th February 1903). Various cases, chiefly from the literature of the subject, are brought together by Paul Meunier and Masselon (_Les Rêves et leur Interpretation_, 1910).] [Footnote 74: Sante de Sanctis, _I Sogni_, p. 380.] CHAPTER V EMOTION IN DREAMS