When it comes to the question of their physical or mental inferiority, a cursory inspection is all that is required to show they are far below the average. There is a great want of symmetry of body and mind—evidence of degeneration. In order to test the strength of constitution, which is a good way to get at one form of physical fitness for survival, it seems to me, I made a study of the blood of a considerable number of these children and found the amount of protoplasm in the colorless blood corpuscles deficient. This shows that their power to resist disease is slight. It must be borne in mind, however, that a strong constitution alone is not evidence of fitness for survival. A strong person may not have prudence, foresight, keenness of perception, judgment, and many other qualities equally important. The characters just mentioned may constitute fitness when there is only a moderately vigorous body. Mr. Darwin recognized this when he said: "We should bear in mind that an animal possessing great size, strength and ferocity, and which, like the gorilla, could defend itself from all enemies would not, perhaps, have become sufficiently social, and this would effectually have checked the acquirement of the higher mental qualities, such as the sympathy and love of his fellows. Hence, it might have been of immense advantage to men to have sprung from some comparatively weak but social creature."
Fitness is a complicated condition and not a simple one. It depends upon so many external conditions. Fitness in one place would be unfitness in another. Still, other things being equal, strength of constitution is a very important factor, and must not be left out of consideration. With it there is a surplus of material in the body beyond what is required for digestion, assimilation, circulation and other bodily functions, to enable the parents not only to do hard labor, but also to endow their offspring with vigor equal to their own, often greater vigor. The feeble individuals will have a small amount of stored up material in their bodies which we may designate as physiological capital to give continuous food, warmth and protection to their young; they will not be so well adjusted to their environment, and, consequently, natural selection will cause their non-survival—or their offspring, if not immediately, at no distant period.
This doctrine of natural selection has been designated as cruel, harsh, inexorable, and under the influence of the human feeling every effort is in our time being made to prevent this wholesome check upon the processes of nature from having its due influence upon evolution and race progress. Modern hygiene undertakes to put an end to disease, to save all who are born, to surround them with every influence which can favor their health and development. It would stamp out diphtheria, scarlet fever, summer complaint, consumption and a host of other diseases which now decimate the ranks of the unfit, and often, no doubt, of the comparatively fit. This would perpetuate a type of feeble, unhealthy persons. There would not be much hope of more perfect health for the race if our hygienists could carry out this daring scheme along the lines now working. There seems an antagonism between nature's methods of bettering the physical condition of the race and the efforts of man himself, acting under the guidance of his moral feelings, to prevent the action of natural law. Mr. Darwin recognized this, and referred to it in his great work, "The Descent of Man," where he says: "With savages, the weak in body and mind are soon eliminated, and those that survive commonly exhibit a vigorous state of health. We civilized men, on the other hand, do our utmost to check the process of elimination. We build asylums for the imbeciles, the maimed and the sick; we institute poor laws; and our medical men exert their utmost skill to save the life of every one to the last moment."
"There is," says he, "reason to believe that vaccination has preserved thousands who from a weak constitution would have succumbed to smallpox. Thus the weak members of civilized communities propagate their kind. No one who has attended to the breeding of domestic animals will doubt but this must be highly injurious to the human race. Excepting in the case of man himself hardly any one is so ignorant as to allow his worst animals to breed."
Other evolutionists, in more recent times, have taken a still more somber view of this danger of race deterioration through the prevention of the full action of the law of natural selection.
Dr. John Berry Haycraft, in a recent work entitled "Darwinism and Race Progress," has sounded the alarm in no uncertain tones. He says: "Races, therefore, subject to epidemics of a particular fever, suffer selections in the hands of the microbes of that fever, and those living are survivals, cast in the most resisting mould. It may not be flattering to our national vanity to look upon ourselves as the product of the selection of the micro-organism of measles, scarlet fever, smallpox, etc.; but the reasonableness of the conclusion seems to be forced upon us when we consider his immunity from these diseases as compared with the natives of the interior of Africa, or the wilds of America, whose races have never been so selected, and who, when attacked for the first time by these diseases, are ravaged almost to extinction. By exterminating these diseases we shall no doubt preserve countless lives to the community who will, in their turn, become race producers; but in as much as the individuals thus preserved will, in most cases, belong to the feebler and less resisting of the community, the race will not become more robust."
The same author concludes in these words: "In the meantime we may view, and not without inquietude, the probability that our statistics, as far as they go, indicate that race deterioration has already begun as a consequence of that care for the individual which has characterized the efforts of modern society. The biologist, from quite another group of facts, has independently arrived at conclusions which render this view in the highest degree probable."
"Thus, the great English race, once so hardy, so powerful," says this modern writer, "by hygiene and better physical conditions, is becoming weaker and weaker."
This view of the case is growing largely in England and, perhaps, other European countries. There is already some evidence of its truthfulness in statistics. The death rate for those in middle life is rather increasing than diminishing. This arises from the fact that the great number of children who formerly died in infancy have lived, but being of more feeble constitutions, they swell the death rate later on. It is felt, also, in many educational institutions in the larger number of youths who cannot stand the strain and stress of student life. They are, high medical authority says, the youth saved from early death by modern hygienic and medical care. Formerly, natural selection would have chosen them as unfit to survive, and there would have remained alive few besides the hardy ones with good constitutions, capable of great strain, with great powers of endurance.
It is also shown in the stress of modern competition, in which there are multitudes who cannot stand this strain. It is from these, in some degree, that we hear the cry for governmental aid. "We must make the conditions of life easier for them," say our social reformers, "or they will become 'a submerged class.'"