I would not omit to mention also the law of Atavism, in this discussion of heredity. This is that expression of the law in the omission of one generation in the transmission of a quality. We sometimes see the peculiarities or defects of a man or woman not manifested in their children, but reappearing in their grandchildren. Not long ago I was in a family where both parents and all the children had dark hair but one, and she had long, bright auburn ringlets. I asked, "Where did you get your hair?" "From my red-headed grandmother," she answered, with a laugh, indicating that the matter had been so often discussed in her hearing that she understood it quite fully. To cover the whole scope of the law of heredity would take more time than we have to spare. You can follow out the line of thought, and make practical application of the facts and principles here laid down. CHAPTER XXVIII. HEREDITARY EFFECTS OF ALCOHOL, TOBACCO, ETC. Civilized life in its progress is accompanied by certain customs and habits which are detrimental to the individual health, and therefore to national health. The dress of women is not merely an unimportant matter, to be made the subject of sneers or jests. Fashions often create deformities, and are therefore worthy of most philosophic consideration, especially when we know that the effects of these deformities may be transmitted. The tightly-compressed waist of the girl displaces her internal organs, weakens her digestion, and deprives her children of their rightful inheritance. They are born with lessened vitality, with diminished nerve power, and are less likely to live, or, living, are more liable not only to grow up physically weak, but also lacking in mental and moral stamina. This weakness may manifest itself in immoral tendencies, or in some form of inebriety. It is now recognized that alcoholism will produce nerve degeneration, but it is not so well understood that nerve degeneration may be a factor in producing inebriates from alcohol or other poisons. Dr. Crothers says: "Hysteria, convulsions, unreasonable anger, excitement, depression, credulity, skepticism, most unusual emotionalism and faulty reasoning, are some of the signs of nerve degeneration," and adds that this central failure of nerve and brain power is often accompanied by a resulting alcohol or drug inebriety. That is, the weak and degenerate nerves crave a stimulant, and the weak will yield to the demand, and inebriety result. If this degeneration of nerve comes from the low vitality given by the mother, because of her unhealthful habits of dress and life, is it not wise that in her early womanhood she should know of this possibility, and guard against it through her care of herself? She ought also to understand the effect of alcohol and other poisons in producing nerve degeneration in the individual, and its probability in his posterity.