was there knowledge of any monthly or other cyclic periodicity in the occurrence of the manifestations.  In 34 per cent, of cases, they tended to occur very soon after sexual intercourse.  In numerous cases they were peculiarly frequent (even three in one night) during courtship, when the young man was in the habit of kissing and caressing his betrothed, but ceased after marriage.  It was not noted that position in bed or a full bladder exerted any marked influence in the occurrence of erotic dreams; repletion of the seminal vesicles is regarded as the main factor.

In Germany erotic dreams have been discussed by Volkelt (Die Traum-Phantasie, 1875, pp. 78-82), and especially by Loewenfeld (Sexual-Probleme, Oct., 1908), while in America, Stanley Hall thus summarizes the general characteristics of erotic dreams in men:  “In by far the most cases, consciousness, even when the act causes full awakening from sleep, finds only scattered images, single words, gestures, and acts, many of which would perhaps normally constitute no provocation.  Many times the mental activity seems to be remote and incidental, and the mind retains in the morning nothing except, perhaps, a peculiar dress pattern, the shape of a finger-nail, the back of a neck, the toss of a head, the movement of a foot, or the dressing of the hair.  In such cases, these images stand out for a time with the distinctness of a cameo, and suggest that the origin of erotic fetichisms is largely to be found in sexual dreams.  Very rarely is there any imagery of the organs themselves, but the tendency to irradiation is so strong as to re-enforce the suggestion of so many other phenomena in this field, that nature designs this experience to be long circuited, and that it may give a peculiar ictus to almost any experience.  When waking occurs just afterward, it seems at least possible that there may be much imagery that existed, but failed to be recalled to memory, possibly because the flow of psychic impressions was over very familiar fields, and this, therefore, was forgotten, while any eruption into new or unwonted channels, stood out with distinctness.  All these psychic phenomena, although very characteristic of man in his prime, are not so of the dreams of dawning puberty, which are far more vivid.” (G.  Stanley Hall, Adolescence, vol. i, p. 455.)

I may, further, quote the experience of an anonymous contributor—­a healthy and chaste man between 30 and 38 years of age—­to the American Journal of Psychology ("Nocturnal Emissions,” Jan., 1904):  “Legs and breasts often figured prominently in these dreams, the other sexual parts, however, very seldom, and then they turned out to be male organs in most cases.  There were but two instances of copulation dreamt.  Girls and young women were the, usual dramatis personae, and, curiously enough, often the aggressors.  Sometimes the face or faces were well known; sometimes, only once