Motherhood is pre-eminently a "natural" function in both senses. It might almost be called the natural function, as reproduction seems to be more important in the evolution of species than even self-preservation. It would seem as if the instinct of self-preservation were given merely to keep the creatures alive for purposes of reproduction; for, when the two forces come into conflict, the reproductive instinct is the stronger.
The reproductive functions are performed by both male and female; but, as species developes and more conscious effort is applied to the great task, the female has the larger share.
In furnishing nutrition to the young, order mammalia gives the entire task to the mother; and their care, protection, and defence are mainly hers.
With the human species, in proportion to its development, the scales have turned the other way. With us the father furnishes food, shelter, and protection, save for the first period of suckling. In many cases the mother fails even to provide this assuredly "natural" contribution to the child's nourishment. This would be a good opportunity to call her "unnatural"; but, if she is sufficiently assiduous with the bottle or wet-nurse, we do not. Beyond that period the human mother merely waits upon and watches her children in the shelter provided by the father, and administers to them such food, clothing, and other supplies as he furnishes.
Her educational office, too, has largely passed from her, owing to the encroachments of the school and kindergarten. She still moulds their morals and manners as far as she is able, and has command of their education during the earliest and most important years.
Now is it "natural" for a mother to take no part in getting food for children? If ever there was a natural function pertaining to motherhood, that seems to be one. If we use the word in its primitive sense, she certainly is "an unnatural mother" for relinquishing this primal duty. But, if we use it in the other sense, she is quite natural in accepting the conditions of civilised life as far as they are advantageous to the child. Is it "natural" for a mother to submit her children to the instruction of other extra-maternal persons? or to call the doctor when they are sick, engage the dentist to fill their teeth, and hire persons to help take care of them? These things are not primitive surely, but neither are they "unnatural." The "nature" of motherhood is to provide what is best for the child; and the multiplied services and facilities of our socially developed lives are as natural to us as our smooth white skins, once "naturally" brown and shaggy.
In all fair thinking, speaking, and writing, we should decide clearly upon our meaning, and see that it would be very unnatural for modern women to behave as was natural to primitive women.
The main duty remains the same,—to benefit the child. Methods and materials are open to choice and change. Motherhood is as open to criticism as any other human labour or animal function. Free study, honest criticism and suggestion, conscientious experiment in new lines,—by these we make progress. Why not apply study, criticism, suggestion, and experiment to motherhood, and make some progress there?
"Progress in motherhood" is a strange phrase to most of us. We would as soon speak of progress in digestion.
That shows how we persist in confounding the physical functions of reproduction with the elaborate processes that follow; and yet we do not apply our scornful term of "unnatural mother" to the weak, unhealthy woman who cannot compete with a cow in this stage of motherhood. We should think fairly one way or the other. Success in the physical functions of maternity we shall do well to keep up to a level with the performance of the "lower animals." The ensuing processes are the ones open to progress.