Note (return) — ORGANIC DIFFERENCES IN THE SEXES

The researches of Düsing,3 supplementing the antecedent observations of Ploss,4 and further supplemented by the ethnological data collected by Westermarck,5 seem to demonstrate a connection between an abundance of nutrition and females, and between scarcity and males, in relatively higher animal forms and in man. The main facts in support of the theory that such a connection exists are the following: Furriers testify that rich regions yield more furs from females and poor regions more from males. In high altitudes, where nutrition is scant, the birthrate of boys is high as compared with lower altitudes in the same locality. Ploss has pointed out, for instance, that in Saxony from 1847 to 1849 the yield of rye fell, and the birth-rate of boys rose with the approach of high altitudes. More boys are born in the country than in cities, because city diet is richer, especially in meat; Düsing shows that in Prussia the numerical excess of boys is greatest in the country districts, less in the villages, still less in the cities, and least in Berlin.6 In times of war, famine, and migration more boys are born, and more are born also in poor than in well-to-do families. European statistics show that when food-stuffs are high or scarce the number of marriages diminishes, and in consequence a diminished number of births follows, and a heightened percentage of boys; with the recurrence of prosperity and an increased number of marriages and births, the percentage of female births rises (though it never equals numerically that of the males).7 More children are born from warm-weather than from cold-weather conceptions,8 but relatively more boys are born from cold-weather conceptions. Professor Axel Key has shown from statistics of 18,000 Swedish school children that from the end of November and the beginning of December until the end of March or the middle of April, growth in children is feeble. From July-August to November-December their daily increase in weight is three times as great as during the winter months.9 This is evidence in confirmation of a connection between maleness, slow growth, and either poor nutrition or cold weather, or both. Professor Key's investigations10 have also confirmed the well-known fact that maturity is reached earlier in girls than in boys and have shown that in respect of growth the ill-nourished girls follow the law of growth of the boys. Growth is a function of nutrition, and puberty is a sign that somatic growth is so far finished that the organism produces a surplus of nutrition to be used in reproduction. Organically reproduction is also a function of nutrition, and, as Spencer pointed out, is to be regarded as discontinuous growth. The fact than an anabolic surplus, preparatory to the katabolic process of reproduction, is stored at an earlier period in the female than in the male, and that this period is retarded in the ill-nourished female, is a confirmation of the view that femaleness is an expression of the tendency to store nutriment, and explains also the infantile somatic characters of woman. Finally, the fact that polyandry is found almost exclusively in poor countries, coupled with the fact that ethnologists uniformly report a scarcity of women in those countries, permits us to attribute polyandry to a scarcity of women and scarcity of women to poor food conditions.