HEREDITY.
We now come in the third and last part of this book to write of what a young husband ought to know with regard to his children. If his children are to be greatly benefited by the wisdom of the father, he should be in possession of the knowledge imparted in the following chapters many years before he is in possession of the children. After they have received their inheritance from the parents, their bodies have been molded and fashioned, and bent and direction already given to their character, it is then too late to put such knowledge into practical use.
Much of what might be said in the closing chapters of this book has already found expression in the pages preceding. The doctrine of transmission and inheritance pervades not only this entire book, but also the two which precede it in the series. While it is true that too much importance cannot be placed upon the subject of heredity, the inheritance which we receive not only from our parents and grandparents but even from our great-grandparents, and while it is true that all that can be acquired in character and culture, both intellectual and physical, is transmitted from the parents to their children; yet possibly that which is by far the largest factor in determining the physical, intellectual, social and moral endowment of the child are found in the influences which mold and fashion the child during the months which lie between the period of conception and the time of birth. The potent influences of these different periods stand related to each other somewhat like what may be seen in the studio of an artist who molds and fashions in clay the models which are afterward to be actualized in brass or bronze. While the success of the work might be said to be greatly dependent upon the character, quality and condition of the clay brought to hand for this service, and while no perfect result could be secured with indifferent material, yet it is easy to see how, with the very best material at hand, an indifferent artist or a good artist when in indifferent mood would produce a very inferior model. If, with the thought of modifying the bronze figure after it has been cast, the artist is indifferent to the merits of the model which he is making, the final result can only prove a failure. No step in the work is unimportant, but the most important of all is the perfection of the model. In his hands the clay readily yields itself to his thought and impression; constant momentary care will prevent defects and deformities which could not be wholly remedied or refashioned, even by months and years of subsequent toil.
A wise man, when asked at what period a child's education should begin, replied: "Twenty years before it is born." This is not an extreme statement, and if it errs in anything it errs in making the period too short rather than too long. Henry Ward Beecher once said that since so much depends upon one's ancestors, a man ought to be very careful in choosing his grandparents; and there is a vast deal of truth suggested by this statement. A young woman cannot be too careful in choosing the man who is to become the father of her children, and a young man cannot exercise too much care in selecting the woman who is to become the mother of his children.
In writing of heredity and prenatal influences, the subject divides itself naturally into the three periods which we have previously suggested—the preparation which precedes conception, the mental and physical condition at the time of conjunction, the environment and the mental and physical states of the mother during the period of gestation.
So much depends upon heredity that men who are interested in the breeding of horses for the race-course recognize the fact that unless a horse comes of racing stock he cannot be possessed of these essential qualities, without which he cannot possibly win. It is said by those who have made a study of it, that in England no horse has been known to win in any considerable race that was not bred of racing stock. Occasionally a horse with an ordinary pedigree may exhibit wonderful speed for a short distance, but none possesses the wind and endurance necessary for a long race with animals of a pure blood and a good pedigree. To this good inheritance the horseman adds constant training and the best of care. If these are at any time neglected, the horse begins to degenerate and reverts to the level of the ordinary animal.
It is generally agreed by physicians and those who have devoted time to the study of this subject that the mind and temper of the parents at the moment of conjunction have a great influence upon the temper and disposition of the child. Children should never be begotten except at those times when the husband and the wife can both bring their contribution of good health, affection and mental composure. Something of the effects produced by the mental states will appear by what we have to say in subsequent paragraphs.
In most instances it is perhaps true, as we have already suggested, that the greatest influences exerted upon the health, disposition and character are those which are effected by the physical and mental condition of the mother and the character of her environment during the period of gestation. While much of what we would like to know concerning prenatal influences is shrouded in mystery behind a veil that shuts us out from this holy of holies in which God dwells in mysterious creative power, yet we do know that peace of mind, equanimity of temper, purity of life, loving affections and exalted aspirations beget influences which are favorable to the production of the best physical, intellectual and moral endowments. If strong mental excitement, anger, emotion or fatigue affect injuriously the milk of the mother, so that the nursing child at once feels disturbed and injured, then we can reasonably understand how the child during the months prior to its birth, while it is even more dependent and far more intimately connected with the life-currents of the mother's body, and under the impress of her mental state, must be affected in a manner correspondingly greater.
While scientists at the present stage of inquiry and investigation have not been able to weigh and measure the force and effect of these influences, yet some results have been secured which help us to understand the existence of powers which were previously too subtle to be brought into the realm of human knowledge.
Something of the manner in which the mental condition of the mother may affect the child is suggested by the interesting experiments conducted by Prof. Elmer Gates in his laboratory at Chevy Chase, Washington, D. C. Prof. Gates has demonstrated the fact that even the breath is so affected by the mental state that by analyzing the residuum which remains upon a looking-glass which has been breathed upon, he is able to determine the character of the mental condition of the individual at the time the breath was exhaled upon the glass. Anger, revenge, jealousy, joy, pain, pleasure, and possibly all the emotions, stamp their distinctive messages upon the breath with as much accuracy as the little machine in the telegraph office registers its message in characters which we need only to know in order to be read. What some of these many characters are, Prof. Gates has been able to decipher, and his investigations and discoveries establish the fact that the mentality of the individual is stamped upon the breath.