Indifferent, notwithstanding, to all the vital activities and psychical evolutions taking place within the mysterious laboratory of the mother's body; reckless of the circumstance that any interference with, or hampering of the least of these must inevitably jar, and warp, the delicate complexes of infantine development, we scruple not to strain and burden, to harass and deplete, the prospective mother even further by strenuous breadwinning. Her whole physiology and psychology are profoundly altered by her momentous condition; by the new adjustments to the needs of the developing babe, of the maternal circulation and digestion, assimilation and elimination, mentality and intricate nervous constitution and processes. Fatigue, noise, turmoil, effort, shock--any one or all of these which are inseparable from industrial employment--cannot but injuriously re-act upon the delicate evolutions mysteriously occurring in her. The infant brain is complete at birth. From its lowest to its highest departments, all the marvel of exquisitely-delicate construction and association of its complex cells is achieved pre-natally. And according or not as her vital powers have been rich and otherwise unexpended, and according or not as the embryological processes of development have occurred in quietude and freedom from strain upon the mother's part, will be the quality for life, in vigour and in sanity, of her child's intelligence and character. VII In view of those lower biological grades through which the embryo passes before arriving at the human stage, it is inevitable that maternal over-fatigue, shock or undue effort may arrest its physical development temporarily upon any of these lower levels. And such arrest must inevitably entail some warp or bias of a lower animal phase; which may so impress itself permanently on embryonic development as to detract more or less gravely from the final transition. It is, doubtless, for this reason that many modern humans show in their configuration, degrees of reversion to ape, sheep, fish and other lower species. Shock or nervous perturbation in the expectant mother may occasion, in the babe, appalling monstrosity, or such minor defects as cleft-palate, hare-lip, and other deformities. Showing the vital and--inevitably--the psychological effects on offspring, for good or for evil, of maternal conditions and impressions. The Germans record that of infants born during the war, a number are gravely degenerate of type, an infant-degeneracy attributed by some to the creed of Hate obsessing German mothers. The same phenomenon is seen however in the offspring of mothers exhausted by religious preachings and marchings, in furtherance of their creed of Christian Love. For Biology recognises no Theology except its own--that of Evolution. At a representative meeting of London doctors, it was stated recently that the number of imbecile infants now coming into existence with us is no less than appalling.