* * * * *
Said Mazzini, "Man and Woman are the two human Wings that lift the soul toward the Ideal we are destined to attain." And the value and the effectiveness of these two human, as of other wings, lie in the degree to which, although they work in unison, they move in different areas; apart from and independent, each of the other; balancing and correlating, but, nevertheless, each sustaining its own side of the body, Vital and Social.
APPENDIX
Further Evidences in Support of the Biological and Mendelian Propositions Advanced in Book I.
I
The Male is the impelling force in Physical Development, or Adaptation to environment
Scientific stock-breeding supplies valuable practical examples of applied Genetics, or the Science of Heredity.
Although artificial, in the sense that the creatures of the Stock-yard are not mated by law of Natural Selection, nor are they bred or reared under normal environmental conditions, the circumstance that breeders are breeding for special characteristics, and mate the parents with a view to the transmission and the accentuation of such, provides important indications regarding hereditary influence and its determinant factors.