Rev. Sylvanus Stall, the author of several widely-read works on the subject of Sex, says of strict continence: "One theory is that the reproductive function is not to be exercised except for the purpose of procreation. * * * There are some married people, more numerous than some suppose, who have adopted the idea of uniform continence, and who call the reproductive nature into exercise for the purpose of procreation only, and who assert that the maintenance of continence secures not only the greater strength and better health, but greater happiness also. * * * While the results of our investigations do not enable us to assert that it is the true theory, we are yet prepared to say that it is worthy of thoughtful consideration. If it is possible for married people to maintain absolute continence for a period of six months or a year, it must be conceded that it would be possible to extend that time to a longer period. The maintenance of this theory would require such a degree of self-control as is far beyond the possession of the great mass of humanity. We fear, also, that there are but few, even if they entered upon a life union with such thought and intention, who would be willing to maintain their principles for any considerable period. * * * The other theory, and that which many men and women who are eminent for their learning and religious life hold to be the correct theory, is that while no one has a right to enter upon the marriage relation with the fixed purpose of evading the duty of parenthood, yet that procreation is not the only high and holy purpose which God has had in view in establishing the marriage relation, but that the act of sexual congress may be indulged in between husband and wife for the purpose of expressing their personal endearments, and for quickening those affections and tender feelings which are calculated to render home the place of blessing and good which God intended. * * * It is held by those who advocate this theory, that while it would be possible to restrict the exercise of the reproductive functions to the single purpose of procreation, yet in the great majority of instances the effort to live by that theory would generally result in marital unhappiness. * * * Due regard is not only to be paid to the perpetuity of the race, but to the well-being and perpetuity of the individual." The advocates of continence, except for the purpose of procreation, advance many arguments and evidence to justify their contention that this is the only course justified by Nature and Morality. We need not present this argument here, for it is outside the particular question now under consideration. However, in all fairness and justice, there should be presented here the general outline of their argument that there is no rational basis for the widely accepted idea that abstinence from sexual relations is in any way harmful or detrimental to the health and physical well-being of the human race.