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GENERAL PREFACE
THE EVOLUTION OF MODESTY-1.1
THE EVOLUTION OF MODESTY-1.2
THE EVOLUTION OF MODESTY-1.3
THE EVOLUTION OF MODESTY-1.4
THE EVOLUTION OF MODESTY-1.5
THE EVOLUTION OF MODESTY-1.6
THE EVOLUTION OF MODESTY-2.1
THE EVOLUTION OF MODESTY-2.2
THE EVOLUTION OF MODESTY-2.3
THE EVOLUTION OF MODESTY-2.4
THE EVOLUTION OF MODESTY-2.5
THE EVOLUTION OF MODESTY-3
THE EVOLUTION OF MODESTY-4
THE PHENOMENA OF SEXUAL PERIODICITY-1.1
THE PHENOMENA OF SEXUAL PERIODICITY-1.2
FOOTNOTES
THE PHENOMENA OF SEXUAL PERIODICITY-2.1
THE PHENOMENA OF SEXUAL PERIODICITY-2.2
THE PHENOMENA OF SEXUAL PERIODICITY-2.3
THE PHENOMENA OF SEXUAL PERIODICITY-3.1
THE PHENOMENA OF SEXUAL PERIODICITY-3.2
THE PHENOMENA OF SEXUAL PERIODICITY-3.3
THE PHENOMENA OF SEXUAL PERIODICITY-3.4
THE PHENOMENA OF SEXUAL PERIODICITY-3.5
FOOTNOTES
AUTO-EROTISM: A STUDY OF THE SPONTANEOUS MANIFESTATIONS OF THE SEXUAL IMPULSE-1.1
AUTO-EROTISM: A STUDY OF THE SPONTANEOUS MANIFESTATIONS OF THE SEXUAL IMPULSE-1.2
AUTO-EROTISM: A STUDY OF THE SPONTANEOUS MANIFESTATIONS OF THE SEXUAL IMPULSE-1.3
AUTO-EROTISM: A STUDY OF THE SPONTANEOUS MANIFESTATIONS OF THE SEXUAL IMPULSE-1.4
AUTO-EROTISM: A STUDY OF THE SPONTANEOUS MANIFESTATIONS OF THE SEXUAL IMPULSE-1.5
AUTO-EROTISM: A STUDY OF THE SPONTANEOUS MANIFESTATIONS OF THE SEXUAL IMPULSE-1.6
FOOTNOTES
AUTO-EROTISM: A STUDY OF THE SPONTANEOUS MANIFESTATIONS OF THE SEXUAL IMPULSE-2.1
AUTO-EROTISM: A STUDY OF THE SPONTANEOUS MANIFESTATIONS OF THE SEXUAL IMPULSE-2.2
AUTO-EROTISM: A STUDY OF THE SPONTANEOUS MANIFESTATIONS OF THE SEXUAL IMPULSE-2.3
AUTO-EROTISM: A STUDY OF THE SPONTANEOUS MANIFESTATIONS OF THE SEXUAL IMPULSE-2.4
AUTO-EROTISM: A STUDY OF THE SPONTANEOUS MANIFESTATIONS OF THE SEXUAL IMPULSE-3.1
AUTO-EROTISM: A STUDY OF THE SPONTANEOUS MANIFESTATIONS OF THE SEXUAL IMPULSE-3.2
AUTO-EROTISM: A STUDY OF THE SPONTANEOUS MANIFESTATIONS OF THE SEXUAL IMPULSE-3.3
AUTO-EROTISM: A STUDY OF THE SPONTANEOUS MANIFESTATIONS OF THE SEXUAL IMPULSE-3.4
AUTO-EROTISM: A STUDY OF THE SPONTANEOUS MANIFESTATIONS OF THE SEXUAL IMPULSE-3.5
AUTO-EROTISM: A STUDY OF THE SPONTANEOUS MANIFESTATIONS OF THE SEXUAL IMPULSE-3.6
AUTO-EROTISM: A STUDY OF THE SPONTANEOUS MANIFESTATIONS OF THE SEXUAL IMPULSE-3.7
FOOTNOTES
APPENDIX A-1.1
APPENDIX A-1.2
APPENDIX B-1.1
APPENDIX B-1.2
APPENDIX C-1.1
APPENDIX C-1.2
INDEX OF AUTHORS

 

However constituted, there seems little doubt that a physiological weekly 

cycle really exists. This was, indeed, very clearly indicated many years 

ago by the observations of Edward Smith, who showed that there are weekly 

rhythms in pulse, respiration, temperature, carbonic acid evolution, urea, 

and body-weight, Sunday being the great day of repair and increase of 

weight.[126] 

 

In an appendix to this volume I am able to present the results of another 

long series of observations of nocturnal ecbolic manifestations carried 

out by Mr. Perry-Coste, who has elaborately calculated the results, and 

has convinced himself that on the basis of a strictly lunar month, thus 

abolishing the disturbing influence of the weekly rhythm, which in his 

case also appears, a real menstrual rhythm may be traced.[127] 

 

It does not appear to me, however, even yet, that a final answer to the 

question whether a menstrual sexual rhythm occurs in men can be decisively 

given in the affirmative. That such a cycle will be proved in many cases 

seems to me highly probable, but before this can be decisively affirmed it 

is necessary that a much larger number of persons should be induced to 

carry out on themselves the simple, but protracted, series of observations 

that are required. 

 

Since the first edition of this volume appeared, numerous series 

of ecbolic records have reached me from different parts of the 

world. The most notable of these series comes from a professional 

man, of scientific training, who has for the past six years lived 

in different parts of India, where the record was kept. Though 

the record extends over nearly six years, there are two breaks in 

it, due to a visit to England, and to loss of interest. Both 

involuntary and voluntary discharges are included in the record. 

The involuntary discharges occurred during sleep, usually with an 

erotic dream, in which the subject invariably awaked and 

frequently made an effort to check the emission. The voluntary 

discharges in most cases commenced during sleep, or in the 

half-waking state; deliberate masturbation, when fully awake, was 

comparatively rare. The proportion of involuntary to more or less 

voluntary ecboles was about 3 to 1. A third kind of sexual 

manifestation (of frequency intermediate between the other two 

forms) is also included, in which a high degree of erethism is 

induced during the half waking state, culminating in an orgasm in 

which the power of preventing discharge has been artificially 

acquired. The subject, E.M., was 32 years of age when the record 

began. He belongs to a healthy family, and is himself physically 

sound, 5 feet 6 inches in height, but weight low, due to rickets 

in infancy. In early life he stammered badly; his temperament is 

emotional and self-conscious, while his work is unusually 

exacting, and he lives for most of the year in a very trying 

climate. As a boy he was very religious, and has always felt 

obliged to resist sexual vice to the utmost, though there have 

been occasional lapses. 

 

As regards lunar periodicity, E.M., has summated his results in a 

curve, after the same manner as Mr. Perry-Coste, beginning with 

the new moon. The periods covered include 54 lunar months, and 

the total number of discharges is 176; the average frequency is 

about 3 per month of twenty-eight days. The curve, for the most 


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