time, cease to experience the slightest love or even friendship for each other, but their companionship is still kept up, and kept up as a matter of course. As in the process of petrefaction, all the original particles of the root of a tree for instance, gradually disappear and are replaced by particles of quite different, earthy matter, which yet take the exact place of the crowded out, organic molecules and leave the general outline unchanged, until there is absolutely nothing left of the original matter, without the outward appearance of the root having suffered the least alteration, in this process of transformation of the sentiments tiny, imperceptible atoms of habit replace the atoms of love as they vanish, so that when the love has entirely passed out of existence, the outward form of the union remains undisturbed—even if this form is cold, stiff and dead, it is all the more permanent and capable of resistance. If the union is blessed with children the tenderness of the parents is diverted to them and a new love springs up in their hearts which twines around both parents and unites them once more, as a vine joins two neighboring trees together with its luxuriant growth and covers them with foliage and blossoms, although they may be already dead and rotten at the core. Moreover, as the years pass the impulse to love grows weaker, from natural causes, and even if the germs of new attractions do not die out or vanish, it becomes easier every year for the will and judgment to prevent their development. There remains finally after the dawn of love has passed away, a sweet and deep memory of it through the remaining hours of the day of life, which produces a sensation of gratitude to the one loved once so dearly, and impels the two hearts to cling to each other still. On account of all these reasons it may be practicable to mate human beings monogamically for life, even if their disposition of mind or
