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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

ages of 6 and 11; 19, between 12 and 14, the most usual period--a 

precocious one--of commencing puberty; the remaining 3 at 15 and 16; the 

average age of commencing masturbation, it may be added, was 11, while 

that of the first sexual intercourse was 15.[300] In a larger group of 180 

prostitutes, belonging to Genoa, Turin, Venice, etc., and among 23 

"elegant cocottes," of Italian and foreign origin, Moraglia obtained the 

same results; everyone admitted masturbation, and not less than 113 

preferred masturbation, either solitary or mutual, to normal coitus. Among 

the insane, as among idiots, masturbation is somewhat more common among 

males, according to Blandford, in England, as also it is in Germany, 

according to Naecke,[301] while Venturi, in Italy, has found it more common 

among females.[302] 

 

There appears to be no limit to the age at which spontaneous masturbation 

may begin to appear. I have already referred to the practice of 

thigh-rubbing in infants under one year of age. J.P. West has reported in 

detail 3 cases of masturbation in very early childhood--2 in girls, 1 in a 

boy--in which the practice had been acquired spontaneously, and could only 

be traced to some source of irritation in pressure from clothing, 

etc.[303] Probably there is often in such cases some hereditary lack of 

nervous stability. Block has recorded the case of a girl--very bright for 

her age, though excessively shy and taciturn--who began masturbating 

spontaneously at the age of two; in this case the mother had masturbated 

all her life, even continuing the practice after marriage, and, though she 

succeeded in refraining during pregnancy, her thoughts still dwelt upon 

it, while the maternal grandmother had died in an asylum from 

"masturbatory insanity." 

 

Freud considers that auto-erotic manifestations are common in infancy, and 

that the rhythmic function of any sensitive spot, primarily the lips, may 

easily pass into masturbation. He regards the infantile manifestations of 

which thumb-sucking is the most familiar example (Luedeln or Lutschen in 

German) as auto-erotic, the germ arising in sucking the breasts since the 

lips are an erogenous zone which may easily be excited by the warm stream 

of milk. But this only occurs, he points out, in subjects in whom the 

sensitivity of the lip zone is heightened and especially in those who at a 

later age are liable to become hysterical.[304] Shuttleworth also points 

out that the mere fidgetiness of a neurotic infant, even when only a few 

months old, sometimes leads to the spontaneous and accidental discovery of 

pleasurable sexual sensations, which for a time appease the restlessness 

of nervous instability, though a vicious circle is thus established. He 

has found that, especially among quite young girls of neurotic heredity, 

self-induced excitement, often in the form of thigh-friction, is more 

common than is usually supposed.[305] 

 

Normally there appears to be a varying aptitude to experience the sexual 

organism, or any voluptuous sensations before puberty. I find, on 

eliciting the recollections of normal persons, that in some cases there 

have been voluptuous sensations from casual contact with the sexual organs 

at a very early age; in other cases there has been occasional slight 

excitement from early years; in yet other cases complete sexual anaesthesia 

until the age of puberty. That the latter condition is not due to mere 

absence of peripheral irritation is shown by a case I am acquainted with, 


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