So without at all derogating from the teleological principle by which an organization is judged, it is readily conceivable how with beauty of ﬂowers, of the plumage of birds, of crustacea, both as to their shape and their colour, we have only what may be ascribed to nature and its capacity for originating in free activity aesthetically purposive forms, independently of any particular guiding ends, according to chemical laws, by means of the chemical integration of the substance requisite for the organization.