To some a glimpse of this great truth has from time to time appeared. Ferrero, who occupied himself with psychology before attaining eminence as a brilliant historian, suggested thirty years ago that the art impulse and its allied manifestations are transformed sexual instinct; the sexual impulse is “the raw material, so to speak, from which art springs”; he connected that transformation with a less development of the sexual emotions in women; but that was much too hasty an assumption, for apart from the fact that such transformation could never be complete, and probably less so in women than in men, we have also to consider the nature of the two organisms through which the transformed emotions would operate, probably unlike in the sexes, for the work done by two machines obviously does not depend entirely upon feeding them with the same amount of fuel, but also on the construction of the two engines. Möbius, a brilliant and original, if not erratic, German psychologist, who was also concerned with the question of difference in the amount of sexual energy, regarded the art impulse as a kind of sexual secondary character. That is to say, no doubt,—if we develop the suggestion,—that just as the external features of the male and his external activities, in the ascending zoölogical series, have been developed out of the impulse of repressed organic sexual desire striving to manifest itself ever more urgently in the struggle to overcome the coyness of the female, so on the psychic side there has been a parallel impulse, if of later development, to carry on the same task in forms of art which have afterwards acquired an independent activity and a yet further growth dissociated from this primary biological function. We think of the natural ornaments which adorn male animals from far down in the scale even up to man, of the additions made thereto by tattooing and decoration and garments and jewels, of the parades and dances and songs and musical serenades found among lower animals as well as Man, together with the love-lyrics of savages, furnishing the beginnings of the most exquisite arts of civilisation.