The only practical hope of easement from the hardships of senescence and for the postponement of death now tenable is that now arising faintly and tentatively that, some day, some mitigation of the terrors of old age and death may be found by glandular implantation or perhaps even by the injection of the secretions of certain glands. We know that the germinal glands, and especially their products, have a unique vitality of their own and also that they exert a remarkable and all-pervasive influence upon all the organs and functions of the body; and that thyroid extract retards and its absence precipitates all the processes of aging. The new studies in this field suggest that glands may be the sovereign masters of life. These studies are yet, however, in their infancy and it will be, at the best, a long time before we can know whether they are able to fulfill their promise to the human heart and to the will to live. I deem it, however, very significant that contemporaneously with the discovery and exploitation of endocrine functions, and especially those of the sex glands, from another field and quite independently have come the discovery and exploitation of the unconscious and the recognition that its chief content is sexual. The analogies between these two lines of advance and their real relation with each other have not yet been fully recognized, much less wrought out. But already there is promise of a new and more stimulating rapport between biology and analytic and genetic psychology. If researches in the former field ever have the therapeutic value already so abundantly illustrated in the latter, we shall indeed be fortunate. Just now this seems not probable for a long time. But the physiological dominance of sex glands and their products, and the immense rôle played by sex life, especially in man, suggest that it is in this field that the cure of his most grievous ills must be sought, just as the oldest and most persistent myths and legends have so long taught that it was in this field that the so-called fall of man took place. CHAPTER VII REPORT ON QUESTIONNAIRE RETURNS