“Friday, September 8, 1893.  The peculiar feeling. 
        (Continued until Tuesday, the 11th, and then disappeared. 
        No sexual intercourse, and no nightly emission.)

    “Wednesday, October 25, 1893.  The peculiar feeling. 
        (Continued until Saturday night, when there was a nightly
        emission.)

    “Saturday, December 9, 1893.  The peculiar feeling. 
        (Continued until Monday night, when there was sexual
        relations.)

    “It will be noted that the intervals observed were of about six
    weeks’ duration, excepting one, that from September to October,
    when it was nearly seven weeks.

“These observations were not recorded after 1893.  X. thinks that in 1894 the intervals were longer, an opinion which is based on the fact that for a period of six months he had no sexual intercourse and no nightly emissions.  The times during this six months when he had the ‘peculiar feeling,’ the sensation was so slight as to be scarcely noted.  In 1895, the feeling seemed more pronounced than ever before, and X. thinks that it may have recurred as often as once a month.  In 1896, 1897, and 1898, the intervals, he thinks, lengthened—­at times, he thought, wholly disappeared.  During 1899, while they did not recur often, when they did come the sensation was pronounced, although the emission was less common.  There was a peculiar ‘heavy’ feeling about the testicles, and a marked tendency towards erection of the penis, especially at night-time (while sleeping).  X. often awoke to find a tense erection.  Moreover, these feelings usually continued a week.

    “1.  In general, X. is of the opinion that as he grows older these
    intervals lengthen, though this inference is not based on
    recorded data.

    “2.  He notes that a discharge (through sexual intercourse or in
    sleep) invariably brings the peculiar feeling to a close for the
    time being.

“3.  He notes that sexual intercourse at the time stops it; but, when there has been sexual intercourse within a week or ten days of the time (based upon the observations of 1893), that it had no tendency to check the feeling.”

In another case, that of F.C., an Irish farmer, born in Waterford, the data are still more meagre, though the periodicity is stated to be very pronounced.  He is chaste, steady, with occasional lapses from strict sobriety, healthy and mentally normal, living a regular open-air life, far from the artificial stimuli of towns.  The observations refer to a period when he was from 20 to 27 years of age.  During this period, nocturnal emissions occurred at regular intervals of exactly a month.  They were ushered in by fits of irritability and depression, and usually occurred in dreamless sleep.  The discharges were abundant and physically weakening, but they relieved the