=Is there a corresponding period in a man’s life?=--Yes. It usually occurs some five or ten years later and is more gradual. If he is well preserved he does not become impotent or sterile. The sexual appetite begins to abate and they no longer experience perfect erection. There are also physical changes taking place that make this period a crisis in his life. Certain brain affections, sometimes resulting in unexpected death, is due to sexual indulgence at this time. Many men do not know, that if they are to have a beautiful sunset, they must conserve their sexual life. =Is there any way to determine the sex of a child?=--This is evidently governed by some definite law, which has not been discovered. Many theories have been advanced, but none are generally accepted. =What is the best season of the year for conception to take place?=--In the spring. A larger per cent. of the children are healthy and long-lived than when the initial of their lives occur at other times. =What is the difference between an abortion and a miscarriage?=--- The first is where the expulsion of the fetus is willfully produced; the other where it is purely an accident. =Is abortion ever justifiable?=--Only when it is done to save the life of the mother. =What are some of the causes of miscarriage?=--Intercourse during pregnancy and nursing a child after conception are the chief causes. The child should be weaned as soon as a mother suspects pregnancy. Venereal diseases, straining at stool, over-exertion, physical accidents and ill health may sometimes cause miscarriage. =When does life begin in a child?=--At conception. It is as much a crime to destroy the life of a fetus one day old as it is after its movements are felt. =Is it possible to lessen the inconvenience of pregnancy and the pain of child-birth?=--Yes. Avoid all tight lacing; eat chiefly a diet of cereals, fruit and vegetables; take light, regular open-air exercise, of which walking is best, and have little or no intercourse during the time. Tight lacing has been the chief cause of the inconvenience and pain experienced by civilized woman. NINTH DIVISION MORAL, SOCIAL AND REFORM TOPICS CHAPTER LV SCHOOL INSTRUCTION IN SEX HYGIENE BY CHARLES W. ELIOT President Emeritus of Harvard College.