Chapter 5

There are six chief sources of sexual climax... self stimulation(masturbation), nocturnal dreaming to the point of climax, heterosexual petting to climax, true heterosexual intercourse, homosexual intercourse, and contact with animals of other species.
lmao, the second one.. i wish lol
Pre-adolescent sexual stimulation is much more common among younger boys than it is among younger girls. Many younger females and for that matter, a certain portion of the older and married female population, may engage in such specifically sexual activities as petting and even intercourse without discernible erotic reaction.
thinking about E.. “without discernible erotic reaction”.. that’s very sad..
 for scientific research allowed such laboratory investigation. In the higher mammals including the human, tactile stimulation is the chief mechanical source of arousal. but the higher mammal, especially the human, soon becomes so conditioned by his expe rience, or by the vicariously shared experiences of others, that psychologic stimula tion becomes the major source of arousal for many an older person, especially if he is educated and his mental capacities are well trained. There is an occasional individual who comes to climax through psychologic stimulation alone
lmao.. “comes to climax through psychologic stimulation alone”.. that would be really cool!
yea.. i for one am definitely accustomed to achieve arousal through porn.. 
reading this book is making me frigid.
a flow of blood into such distensible organs as the eyes, the lips, the lobes of the ears, the nipples of the breast, the penis of the male, and the clitoris, the genital labia and the vaginal walls of the female; a partial but often considerable loss of perceptive capac ity(sight, hearing, touch, taste, smell);
 The most important consequence of sexual orgasm is the abrupt release of the extreme tension which preceded the event and the rather sudden return to a normal or subnormal physiologic state after the event. In the mature male, ejaculation of the liq- uid secretions of the prostate and seminal vesicles, through the urethra of the penis, is a usual consequence of the convulsions produced by orgasm in those particular organs, and such ejaculation usually provides the most ready proof that the individual has passed through climax. But orgasm may occur without the emission of semen This latter situation is, of course, the rule when orgasm occurs among pre-adolescent males and among females.
Behavior during orgasm... There is great variety among adult males; and, it is inter- esting to note, there is as great variety and the same sort of variety among pre adolescent boys.
i think this is referring to the type of orgasm is different for individuals, but stays the same for the same person at different age.
 (anger, fright, pain, etc. )may be the basic mechanism of sexual response. the pre-adolescent boy erects indiscriminately to the whole array of emotional situa- tions, Whether they be sexual or non-sexual in nature. By his late teens the male has been so conditioned that he rarely responds to anything except a direct physical stim ulation of genitalia, or to psychic situations that are specifically sexual. In the still older male even physical stimulation is rarely effective unless accompanied by such a psychologic atmosphere. The picture is that of the psychosexual emerging from a much more generalized and basic physiologic capacity which becomes sexual, as an adult knows it, through experience and conditioning
very interesting.
page 364:
我靠，不读不知道自己竟然被“保护”的这么好？
 Without help from more experienced persons, many preadolescents take a 
     good years to discover masturbatory techniques that are sexually effective.
  
im just overall very sensitive in every aspects..
page 371: i think this must refer to a difference between the US and china..
sex is such a cultural thing.. 
There are vaginal insertions which involve objects of various sorts, but most often they are finger insertions. Pre-adolescent attempts to effect genital union occur in nearly 22 per cent of all male histories, which is over half(55.3%)of the histories of the boys who have any pre-adolescent play. On this point, there are considerable differences between social levels (able 27). Three- quarters ( 74. 4%) of the boys who will never go beyond eighth grade try such pre adolescent coitus, but such experience is had by only one-quarter(25.7%)of the pre adolescent boys of the group which will ultimately go to college(Chapter 10)
not hard to interpret
 The lower level boy has considerable information and help on these matters from lder boys or from adult males, and in many cases his first heterosexual contacts are with older girls who have already had experience. Consequently, in this lower level pre-adolescent contacts often involve actual penetration and the children have what amounts to real intercourse. The efforts of the upper level boys are less often success- ful, in many cases amounting to little more than the apposition of genitalia. With the lower level boy, pre-adolescent coitus may occur with some frequency, and it may be had with a variety of partners. For the upper level boy. the experience often occurs only once or twice, and with a single partner or two. These differences between pat terns at different social levels, even in pre-adolescence, are of the utmost significance in any consideration of a program of sex education(Chapter 10)
refer this to the systematic problem existed in current sex education in china
 The most remarkable aspect of the pre-adolescent population is its capacity to achieve repeated orgasm in limited periods of time. This capacity definitely exceeds the ability of teen-age boys who, in turn, are much more capable than any older males(Tables 33, 34, 48, Figure 36). Among 182 pre-adolescent boys on whom sufi cient data are available, more than half(55.5%, 138 cases )readily reached a second climax within a short period of time, and nearly a third(30. 8%) of all these 182 boys were able to achieve 5 or more climaces in quite rapid succession(Tables 32-34). It is certain that a higher proportion of the boys could have had multiple orgasm if the situation had offered. Among 64 cases on which there are detailed reports, the aver- age interval between the first and second climaces ranged from less than 10 second to 30 minutes or more, but the mean interval was only 6.28 minutes(median 2.25 minutes)(Table 33). There are older males, even in their thirties and older, who are able to equal this performance, but a much higher proportion of these pre-adolescent
     ales are so capable. Even the youngest males, as young as 5 months in age, are capable of such repeated reactions. Typical cases are shown in Table 34. The maxi
 mum observed was 26 climaces in 24 hours, and the report indicates that still more might have been possible in the same period of time
i for one, am not surprised.
“the first and second climaces .. 10 seconds to 30 mins.. mean interval 6.28 mins.. median 2.25 mins.. the maximum observed is 26 climaces in 24 hours..
 While the sexual history of the human male thus begins in earliest infancy and develops continuously to its maximum activity somewhere between the middle teens and twenty years of age (Chapter 7), the steady progress of the development among primates, accelerated in a period of growth which is known as adolescence
The sexual life of the older male is, on the other hand, an end in itself.
and i would not let that be.
and i would not let that be.
and i would not let that be.
sex is not an end to me. it’s a mean.
 Among most boys, the physical changes of adolescence come on more or less abruptly, usually between the ages of 11 and 14, and in that period their sexual activi- ties are suddenly stepped up until, within another few years, most of them reach the maximum rate of their whole lives(Chapter 7). Among most females, as the data in another volume will show, sexual development comes on more gradually than in the male, is often spread over a longer period of time, and does not reach its peak until a good many years after the boy is sexually mature
maximum rate of their whole life within a few years..
male-female difference
 The mean age of first orgasm resulting in ejaculation is 13 years, 10 1/2 months (13.88 years). On this point, the male data are in striking contrast with preliminary calculations on the female. By 15 years of age, 92 per cent of the males have had orgasm, but at that same age less than a quarter of the females have had such experi- ence, and the female population is 29 years old before it includes as high a percent age of experienced individuals as is to be found in the male curve at 15. Precise data on the female must await the publication of a later volume
29 years old for first organism in female!?
 For the U. S. population, the sources of first ejaculation(Table 38, Figure 30)are in order of frequency, masturbation (in about two-thirds of the males), nocturnal emissions (in an eighth of the cases), heterosexual coitus (in one boy out of eight), and homosexual contacts (in one boy out of twenty), with spontaneous ejaculation, petting to climax, and intercourse with other animals as less frequent stimuli for the initial experience.

im hahing blurry memories..
 Beyond earliest adolescence, it is a rare male who ejaculates when no physical contact is involved. Many teen-age and even older males come to climax in hetero- sexual petting that may not involve genital contacts; but general body contact, or at least lip contact, is usually included in such situations. There are stray cases of males of college age ejaculating under the excitement of class recitation or examination, in airplanes during combat, and under other rare circumstances. There are two cases of older males who could reach climax by deliberate concentration of thought on erotic situations; but such spontaneous ejaculation is almost wholly confined to younger boys just entering adolescence
this is very cool!
 After the initial experience in ejaculation, practically all males become regular in their sexual activity. This involves monthly, weekly, or even daily ejaculation, which occurs regularly from the time of the very first experience. Among approximately 4600 adolescent males, less than one per cent (about 35 cases)record a lapse of a year or more between their first experience and the adoption of a regular routine of sexual activity. This means that more than 99 per cent of the boys begin regular sex ual lives immediately after the first ejaculation. In this respect, the male is again very different from the female, for there are many women who go for periods of time ranging from a year to ten or twenty years between their earlier experiences and the subsequent adoption of regularity in activity. The male, in the course of his life, may change the sources of his sexual outlet, and his frequencies may vary through the weeks and months, and over a span of years, but almost never is there a complete cessation of his activity until such time as old age finally stops all resn
very factual, and very beatifully written.
what do you mean “even” daily.. :-)